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Quantum Technologies for Fundamental Physics

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

Session

Tests of Quantum Mechanics

5 Sept 2023, 09:00
EMFCSC (Erice, Italy)

EMFCSC (Erice, Italy)

Via Guarnotta, 26 - 91016 ERICE (Sicily) - Italy The conference will take place at the San Domenico Institute in the Dirac Lecture Hall: Piazzetta S. Domenico, 1, 91016 Erice TP: ttps://goo.gl/maps/VRnvpsRqLdvj2AfE6

Conveners

Tests of Quantum Mechanics: Session 1

  • David Kaplan

Tests of Quantum Mechanics: Session 2

  • Surjeet Rajendran

Presentation materials

There are no materials yet.

  1. 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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  2. 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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  3. 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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  4. 58. Discussion
    05/09/2023, 10:15
  5. 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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  6. 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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  7. 78. Francesco Muia - GW
    Francesco Muia (University of Cambridge)
    05/09/2023, 12:20
  8. 61. Discussion
    05/09/2023, 12:45
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