In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
Permanent link for public information only:
Permanent link for all public and protected information:
Combined quantum effects from topology and boundaries in the cosmic string spacetime
(Yerevan State University)
Aula Seminari (LNF)
Via Enrico Fermi, 40
00044 Frascati (Roma)
Quantum vacuum effects are described for scalar, fermionic and electromagnetic fields in the geometry of a straight cosmic string in the presence of reflecting boundaries. At large distances from the string core, the geometry is described by the flat line-element with planar angle deficit. Both the non-trivial topology and boundaries modify the spectrum for vacuum fluctuations of quantum fields. As a result the vacuum expectation values of bilinear combinations of fields are changed. As such combinations we consider the field squared, fermionic condensate and the energy-momentum tensor. Applications to graphene nanocones are given within the framework of the Dirac model for electrons in the graphene sheet.