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Quantum Technologies for Fundamental Physics

1–7 Sept 2023
EMFCSC (Erice, Italy)
Europe/Rome timezone

Contribution List

75 out of 75 displayed
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  1. 19. SQMS - Welcome Remarks and Introduction
    Anna Grassellino
    02/09/2023, 09:00
  2. 20. SQMS Italy - Welcome Remarks and Introduction
    Valter Bonvicini (Istituto Nazionale di Fisica Nucleare)
    02/09/2023, 09:10
  3. 21. DOE Introductory Remarks
    Abid Patwa (Department of Energy, Office of High Energy Physics)
    02/09/2023, 09:20
  4. 18. INFN Present and Future Perspectives
    Marco Pallavicini (INFN Genova)
    02/09/2023, 09:30
  5. 75. Introduction to superconducting qubits for QIS & beyond
    Jens Koch
    02/09/2023, 10:00

    This talk will provide a brief overview and introduction to superconducting qubits: their historical development, their current use, and future prospects.

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  6. 74. History and frontiers of SRF technology and application.
    Hasan Padamsee
    02/09/2023, 11:30

    SRF (Superconducting Radio Frequency) science and technology has taken the accelerator world by storm. Steady advances in SRF performance have enabled, and continue to enable, a large variety of SRF-based accelerators for applications in materials science, nuclear physics, nuclear astrophysics, and high energy physics. The total installed voltage has risen from 7 GeV in the year 2000 to 25 GeV...

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  7. 76. Loophole-free Bell Inequality Violation with Superconducting Circuits*
    Andreas Wallraff
    02/09/2023, 12:00

    Superposition, entanglement, and non-locality constitute fundamental features of quantum physics. Remarkably, the fact that quantum physics does not follow the principle of locality can be experimentally demonstrated in Bell tests performed on pairs of spatially separated, entangled quantum systems. While Bell tests were explored over the past 50 years, only relatively recently experiments...

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  8. 23. Performance and scalability tradeoffs in a superconducting qubit processor architecture
    Andrew Bestwick (Rigetti)
    02/09/2023, 12:30

    Rigetti Computing's QPU roadmap projects scaling to large systems by lateral tiling of many individual superconducting qubit chips in a multi-die assembly. Each chip in the assembly, meanwhile, has a dense array of qubits and tunable couplers with 3D signalling. This talk will discuss the challenges of engineering such a QPU to have long coherence times, fast control, and strong qubit-qubit...

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  9. 77. The Case for Testing the Modifications of Quantum Mechanics
    David Kaplan
    02/09/2023, 15:00

    We discuss the case for potential extensions to and motivate tests of quantum mechanics. We then argue that most extensions of quantum mechanics inherently include state-dependent time evolution. We then present a causal modification of quantum mechanics by adding non-linear (state-dependent) terms to the Schrodinger Equation. We find that, until recently, experimental bounds on these...

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  10. 24. Quantum noise in interferometric gravitational wave detectors
    Jean-Pierre Zendri (INFN Padova)
    02/09/2023, 15:30

    Quantum noise plays an important role in limiting the sensitivity of current interferometric gravitational (GW) wave detectors. For this reason, in recent years all international collaborations have undertaken an R&D campaign aimed at overcoming the Standard Quantum Limit for GW detectors. The strategy employed is based on the use of squeezed vacuum states injected in to the detector port of...

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  11. 26. Quantum sensing with a microwave photon counter
    Patrice Bertet (CEA)
    02/09/2023, 16:00
  12. 81. Comparing Quantum and Classical Machine Learning for Vector Boson Scattering Background Reduction at the Large Hadron Collider
    Davide Cugini
    02/09/2023, 16:30
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  13. 82. A protocol for global multiphase estimation
    Giovanni Chesi (Istituto Nazionale di Fisica Nucleare)
    02/09/2023, 16:35
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  14. 83. Overview of available piezo-based nano-positioners for operation into mK range
    Yuriy Pischalnikov (Fermilab)
    02/09/2023, 16:40
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  15. 84. Best Sensitivity to Wavelike Dark Photon Dark Matter with SRF Cavities
    Raphael Cervantes
    02/09/2023, 16:45
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  16. 85. A cryogenic muon veto for superconducting quantum bits
    Ambra Mariani (Istituto Nazionale di Fisica Nucleare)
    02/09/2023, 16:50
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  17. 86. Native 3-body interactions for quantum annealing with trapped ions
    Sebastian Nagies
    02/09/2023, 16:55
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  18. 87. Design, fabrication and characterization of a ultra-high-Q resilient Nb3Sn resonant cavity
    Dr Alessio Rettaroli (Istituto Nazionale di Fisica Nucleare)
    02/09/2023, 17:00
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  19. 88. NbTi Thin Film SRF Cavities for Dark Matter Search
    Giovanni Marconato (Istituto Nazionale di Fisica Nucleare)
    02/09/2023, 17:05
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  20. 89. A SRF Cavity Detector for Gravitational Waves
    Lars Fischer
    02/09/2023, 17:10
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  21. 90. Formulation of the Electric Vehicle Charging and Routing Problem for a Hybrid Quantum-Classical Search Space Reduction Heuristic
    Alberto Bottarelli
    02/09/2023, 17:15
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  22. 91. Loophole-free Bell Inequality Violation with Superconducting Circuits
    Anatoly Kulikov (JINR, Dubna)
    02/09/2023, 17:20
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  23. 27. Introduction
    Yoni Khan (University of Illinois at Urbana-Champaign)
    03/09/2023, 09:00
  24. 33. Opportunities for SRF Cavities in the ADMX-EFR Project
    Gianpaolo Carosi (Lawrence Livermore National Laboratory)
    03/09/2023, 09:10

    The axion is a hypothetical particle that may solve two problems in particle physics & cosmology, the Strong-CP problem and the nature of dark matter. The Axion Dark Matter Experiment (ADMX), which started at LLNL in the mid-1990s, is the DOE Flagship search for these particles. The experiment uses tunable resonant cavities in a large static magnetic field to enhance the conversion of axions...

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  25. 29. Enabling role of SRF cavities as physics detectors: example of DarkSRF
    Alexander Romanenko (Fermilab)
    03/09/2023, 09:30
  26. 37. SERAPH: Wavelike Dark Matter Searches with SRF Cavities
    Raphael Cervantes (Fermilab)
    03/09/2023, 09:45

    Haloscopes consisting of a microwave cavity with a high quality factor (Q) connected to low-noise electronics have been deployed to detect wavelike axions and dark photons. But the dark matter mass is unknown, so haloscopes must be tunable to search through the photon coupling vs. mass parameter space. Therefore, the scan rate for haloscope experiments is a crucial figure of merit and is...

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  27. 31. Advances in SRF cavity architectures for quantum computing and sensing
    Tanay Roy (Fermilab)
    03/09/2023, 10:00

    Superconducting radio frequency (SRF) cavities offer an excellent platform for storing and processing quantum information due to their exceptionally long lifetimes and large accessible Hilbert spaces. A common strategy to manipulate the quantum states is to use a nonlinear element like a transmon. Nevertheless, constructing a 3D SRF architecture with sustained cavity lifetimes presents several...

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  28. 32. Search for sub-GeV Dark Matter using superfluid 3He at ultralow temperatures
    Andrew Casey (Royal Holloway, University of London)
    03/09/2023, 10:15

    At ultra-low temperatures (ULT) macroscopic quantum states form, such as superfluids, that have unique potential as quantum sensors for rare interactions. The QUEST-DMC QTFP project is deploying this technology at two sites capable of reaching ULT, Royal Holloway (RHUL) and Lancaster University (ULANC), both members of the European Microkelvin Platform, EMP (https://emplatform.eu/). QUEST-DMC...

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  29. 30. Novel Materials for High Coherence Superconducting Quantum Devices
    Mustafa Bal (Fermilab)
    03/09/2023, 11:35

    The SQMS Center has launched a systematic investigation to help identify sources of microwave loss and decoherence in superconducting quantum devices, and converge on materials/passivations to mitigate these loss mechanisms. In a Center wide effort, the surface oxides of Nb, singled out to be a significant source of decoherence, is replaced by a passivation layer. A wide range of materials has...

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  30. 34. How to detect axion dark matter … for real
    Aaron Chou (Fermilab)
    03/09/2023, 11:50
  31. 36. Dark matter detection with trapped ions
    Harikrishnan Ramani (Stanford University)
    03/09/2023, 12:10

    Axion Dark Matter, Dark Photon Dark matter and Millicharged particle dark matter are some of the simplest and popular models of dark matter and are looked for in various experiments. Yet, there continue to exist inaccessible regions in interaction and mass parameter space for these models. In this talk I propose a new way to detect the tiny electric fields produced by these dark matter...

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  32. 28. Quantum sensing with cavities and more
    Giacomo Marocco (Lawrence Berkeley Lab)
    03/09/2023, 12:30

    Quantum sensors offer the most promising way to detect a number of light, weakly coupled particles, such as gravitons or axions. Cavities, as well as other optomechanical systems, are current realizations of such sensors in operation. I will discuss how a theoretical tool from quantum optics, the input-output formalism, allows calculation and understanding of the sensitivity of these...

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  33. 35. Entering the quantum utility era: how to best mitigate noise on quantum computers?
    Sabrina Maniscalco (Algorithmiq and Aalto University, Finland)
    03/09/2023, 12:50

    Until fault-tolerance becomes implementable at scale, quantum computing will heavily rely on noise mitigation techniques. Entering the era of quantum utility and performing complex enough quantum simulation requires the use of efficient and scalable noise mitigation strategies.

    While methods such as zero noise extrapolation with probabilistic error amplification (ZNE-PEA) and probabilistic...

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  34. 38. A search for dark matter axions with a transmon-based single photon counter
    Caterina Braggio (Istituto Nazionale di Fisica Nucleare)
    03/09/2023, 15:00

    I will report about a haloscope experiment in which a hybrid surfaced (copper-NbTi) cavity immersed in a 2 T-magnetic field has been readout by a transmon-based single microwave photon detector (SMPD). The cavity frequency could be varied to probe for different axion masses around 30.5 microelectronvolt by means of a nanopositioner, and I will report about the upper limit that we obtained on...

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  35. 39. Axion dark matter search with high-temperature superconducting cavities
    Woohyun Chung (IBS-CAPP)
    03/09/2023, 15:15

    The pursuit of axion dark matter search has long been a daunting task, but recent advances in superconducting materials research have brought physicists closer than ever to unlocking the secrets of this elusive particle. At the forefront of this search is the Center for Axion and Precision Physics research (CAPP), which has established a state-of-the-art detector facility in Korea featuring...

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  36. 40. Nb3Sn for axion searches
    Sam Posen (Fermilab)
    03/09/2023, 15:35
  37. 41. First Results from BREAD Dark Photon Search
    Andrew Sonnenschein (Fermilab)
    03/09/2023, 15:50

    We introduce the Broadband Reflector Experiment for Axion Detection (BREAD) conceptual design and science program. BREAD is a dish antenna experiment based on a coaxial cylindrical reflector design which converts axions or dark photons into ordinary photons and focuses them onto a small sensor. This unique geometry is well matched to the requirements of superconducting quantum sensors since...

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  38. 42. Discussion
    03/09/2023, 16:10
  39. 43. Introduction
    Roni Harnik (Fermilab)
    04/09/2023, 09:00
  40. 45. Resonant Cavities for Gravitational Waves
    Sebastian Ellis (University of Geneva)
    04/09/2023, 09:10
  41. 46. MAGO 2.0: Detecting Gravitational Waves with Superconducting Cavities
    Asher Berlin (Fermilab)
    04/09/2023, 09:45
  42. 79. Discussion
    04/09/2023, 10:20
  43. 47. Status of the MAGO cavity and the plan of high-f GW detection in Hamburg
    Krizstian Peters (DESY), Marc Wenskat (Universität Hamburg)
    04/09/2023, 11:30

    We prepare to set up a new project to detect high frequency GW, starting with the existing cavity from the MAGO collaboration, which will be used for R&D studies and for a first measurement together with Fermilab. We will present the status of the first inspection of the cavity fabricated about 15years ago. In addition, we will show our current results of our theoretical analysis of the...

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  44. 48. MAGO activities at Fermilab and Frequency stability of SRF cavities (microphonics).
    Bianca Giaccone, Yuriy Pischalnikov (Fermilab)
    04/09/2023, 11:55

    At Fermilab we are working with DESY and INFN to revive the MAGO experiment. We started several activities in preparation for the arrival of the cavity onsite in order to be able to successfully cold test the cavity and successively conduct a GW search.

    There are several proposed experiments to search for Dark Matter that will utilize SRF cavities submerged into liquid Helium. Extremely...

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  45. 49. Discussion
    04/09/2023, 12:20
  46. 50. Quantum sensor networks with high efficiency transduction
    Silvia Zorzetti (Fermilab)
    04/09/2023, 15:00

    Quantum transducers facilitate the conversion of quantum information and signals across various physical platforms. In the field of sensing, microwave-optical quantum transducers hold particular significance in enhancing the capabilities of superconducting quantum sensors by harnessing the strengths of both microwave and optical photons. Here, we will address crucial technological aspects...

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  47. 51. Quantum sensing applied to dark matter search
    Quntao Zhuang (USC)
    04/09/2023, 15:20

    I will summarize recent proposals of applying quantum sensing technology, such as squeezing, entanglement and transduction to dark matter search. The sensing platform includes microwave cavities and optomechanical sensors.

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  48. 52. Lithium Niobate Waveguides for quantum applications
    Mirko Lobino (Università di Trento - TIFPA)
    04/09/2023, 15:40

    Lithium niobate is a leading material for integrated optics for quantum and classical applications. Because of its nonlinearity, it supports the fabrication of electro-optical devices for quantum state generation and manipulation. Using this material platform, I will show our experimental results on the generation of squeezed vacuum state on chip, frequency conversion of single photons, and...

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  49. 53. The underground Round Robin
    Ivan Colantoni (CNR Nanotec)
    04/09/2023, 16:00

    The Laboratori Nazionali del Gran Sasso (LNGS) is a deep-underground research facility located in Italy. The facility is surrounded by 1.4 kilometers of rock, which acts as a natural shield against cosmic rays. In this talk, I will present the "Round Robin" project, in which we aim to circulate the same qubit prototype in multiple SQMS testbeds to disentangle the sources of decoherence. I will...

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  50. 54. Discussion
    04/09/2023, 16:20
  51. 55. Test of Causal Non-Linear Quantum Mechanics by Ramsey Interferometry on the Vibrational Mode of a Trapped Ion
    Surjeet Rajendran (The Johns Hopkins University)
    05/09/2023, 09:00

    Kaplan and Rajendran have recently demonstrated that non-linear and state-dependent terms can be consistently added to quantum field theory to yield causal non-linear time evolution in quantum mechanics. Causal non-linear theories have the unavoidable feature that their quantum effects are dramatically sensitive to the full physical spread of the quantum state of the system. As a result, such...

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  52. 56. Towards tests of causal nonlinear quantum mechanics using light-pulse atom interferometry
    Tejas Makarand Deshpande (Northwestern University)
    05/09/2023, 09:25

    Long-baseline light-pulse atom interferometry (LPAI) is a powerful tool for performing tests of fundamental physics (see [1] and reference therein). Using state-of-the-art technology for coherent manipulation of ultracold (picoKelvin) atoms, LPAI is capable of creating quantum superpositions over tens of meters. Moreover, due to acceleration sensitivities close to 10-14 m/s2, using (say) a 100...

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  53. 57. Cryogenic test runs in preparation for NLQM searches
    Alex Melnychuk (Fermilab)
    05/09/2023, 09:50

    "Following the ideas in [1] and [2] we are building an experiment for searching for the quantum mechanics non-linearity signal
    at the cryogenic cavity vertical test facility at Fermlab. The experiment will employ quantum bit sequence generated
    on “Aspen-M” 80-qubit quantum computer at Rigetti Computing, Inc [3]. The novelty of this experiment lies in using cryogenic temperature setup which...

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  54. 58. Discussion
    05/09/2023, 10:15
  55. 59. Experimental measurement of the Bell parameter with a Single entangled pair
    Marco Genovese (INRIM)
    05/09/2023, 11:30

    Bell inequalities are one of the cornerstones of quantum foundations and fundamental tools for quantum technologies.
    Recently, the scientific community worldwide has put a lot of effort towards them, which culminated with loophole-free experiments [1]. Nonetheless, none of the experimental tests so far was able to extract information on the whole inequality from each entangled pair, since...

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  56. 60. Quantum metrology of noisy spreading channels
    Lorenzo Maccone (Universita' di Pavia)
    05/09/2023, 11:55

    We provide the optimal measurement strategy for a class of noisy channels that reduce to the identity channel for a specific value of a parameter (spreading channels). We provide an example that is physically relevant: the estimation of the absolute value of the displacement in the presence of phase randomizing noise. This channel is useful to model axion dark matter search.

    Surprisingly,...

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  57. 78. Francesco Muia - GW
    Francesco Muia (University of Cambridge)
    05/09/2023, 12:20
  58. 61. Discussion
    05/09/2023, 12:45
  59. 62. Quantum computing for HEP application
    Stefano Carrazza (Istituto Nazionale di Fisica Nucleare)
    06/09/2023, 09:00

    We start from a description of the current challenges in quantum computing for simulation and quantum hardware control in view of applications in HEP. We discuss the role of middleware development for quantum computing. We describe recent applications of quantum computing to high-energy physics for parton distribution functions determinations and Monte Carlo simulation. We conclude by...

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  60. 63. Quasiprobabilistic approaches for quantum error mitigation and open system dynamics simulation
    Peter Orth (Saarland University and Ames National Laboratory)
    06/09/2023, 09:25

    We present quasiprobability methods that are aimed at effectively reducing or tailoring the quantum noise present in the output of noisy hardware simulations. These methods rely on a tomographic characterization of noisy quantum channels and then proceed by decomposing the desired quantum channels in terms of the noisy implementable ones. We discuss applications of these techniques to quantum...

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  61. 64. The Quantum Price of Particle Physics
    Hank Lamm (Fermilab)
    06/09/2023, 09:50

    Fundamental obstacles are believed to prevent classical computers from ever producing /ab initio /theoretical predictions for certain cross-sections and transport coefficients at particle colliders and in the early universe. While quantum computers could overcome these obstacles, the current resources estimates for /quantum practicality/ in particle physics are large. In this talk, we will...

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  62. 65. Discussion
    06/09/2023, 10:15
  63. 66. Making the case for a quantum computer for quantum gravity
    Alfredo Iorio (Charles University in Prague)
    06/09/2023, 11:30

    There are many directions to explore in fundamental physics. I will tell why quantum gravity is the most promising and urgent, and will point to specific theoretical open issues, related to black hole entropy, that need to be settled with an experiment. This can eventually open the doors to the next era.

    Then I will discuss why this program can be pursued by using equivalences between...

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  64. 71. Quantum reservoir computing and Quantum Extreme Learning machines
    Massimo Palma (Universita' di Palermo)
    06/09/2023, 11:55

    In the past few years we have witnessed a growing interest computational paradigms beyond the gate paradigm. Among these Extreme learning machines and Reservoir computers are two particularly interesting new computational paradigms. They key feature is the use of a fixed, nonlinear dynamics to efficiently extract information from a given dataset. Such goal, in the classical scenario, is...

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  65. 68. Hybrid Photonics Platform for Quantum Information Processing
    FABIO SCIARRINO (Dipartimento di fisica)
    06/09/2023, 12:20

    The development of optical quantum technologies allows for quantum-enhanced metrology, secure quantum communication, and quantum computing and simulation in highly increased dimensions. Maturing quantum photonics requires efficient generation and detection of single photons, as well as their scalable manipulation. We merge highly efficient multi-photon sources and integrated waveguide...

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  66. 69. Discussion
    06/09/2023, 12:45
  67. 70. Operational Quantum Mereology
    Paolo Zanardi (University of Southern California, Los Angeles, USA)
    06/09/2023, 15:00

    In this talk I will outline a novel approach to quantum mereology based on minimal information scrambling. Generalized quantum subsystems are defined by pairs of von Neumann algebras and their scrambling in terms of an Algebraic Out of Time Order Correlation (A-OTOC) function. The short time expansion of the A-OTOC allows one to define a notion of Gaussian Scrambling rate. The latter has a...

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  68. 72. An invitation to quantum estimation theory
    Matteo Paris (Istituto Nazionale di Fisica Nucleare)
    06/09/2023, 15:25

    Several quantities of interest in physics are non-linear functions of the density matrix and cannot, even in principle, correspond to proper quantum observables. Any method aimed to determine the value of these quantities should resort to indirect measurements and thus corresponds to a parameter estimation problem whose solution, i.e. the determination of the most precise estimator,...

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  69. 73. Discussion
    06/09/2023, 15:50
  70. 80. Closing remarks
    06/09/2023, 16:05
  71. 44. Francesco Muia
    Francesco Muia (University of Cambridge)
  72. 2. History and frontiers of SRF technology and application.
    Hasan Padamsee

    SRF (Superconducting Radio Frequency) science and technology has taken the accelerator world by storm. Steady advances in SRF performance have enabled, and continue to enable, a large variety of SRF-based accelerators for applications in materials science, nuclear physics, nuclear astrophysics, and high energy physics. The total installed voltage has risen from 7 GeV in the year 2000 to 25 GeV...

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  73. 67. Hypergraph states and quantum neural networks
    Chiara Macchiavello (Universita' di Pavia)

    We describe the class of hypergraph states, that generalise the notion of graph states and are employed in several known quantum algorithms, and show how they can be profitably used to realise a quantum computing model of artificial neuron. We describe the implementation of an artificial neural network based on this model and the application to entanglement witnessing and to an industrial case study.

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  74. 25. Loophole-free Bell Inequality Violation with Superconducting Circuits*
    Andreas Wallraff (ETH Zurich)

    Superposition, entanglement, and non-locality constitute fundamental features of quantum physics. Remarkably, the fact that quantum physics does not follow the principle of locality can be experimentally demonstrated in Bell tests performed on pairs of spatially separated, entangled quantum systems. While Bell tests were explored over the past 50 years, only relatively recently experiments...

    Go to contribution page
  75. 22. The Case for Testing the Modifications of Quantum Mechanics
    David Kaplan (Johns Hopkins University)

    We discuss the case for potential extensions to and motivate tests of quantum mechanics. We then argue that most extensions of quantum mechanics inherently include state-dependent time evolution. We then present a causal modification of quantum mechanics by adding non-linear (state-dependent) terms to the Schrodinger Equation. We find that, until recently, experimental bounds on these...

    Go to contribution page