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SUMMARY:Vacuum currents in braneworlds with compact dimensions
DTSTART;VALUE=DATE-TIME:20190917T155500Z
DTEND;VALUE=DATE-TIME:20190917T163000Z
DTSTAMP;VALUE=DATE-TIME:20201027T062048Z
UID:indico-contribution-3547444@indico.cern.ch
DESCRIPTION:Speakers: Stefano Bellucci (Istituto Nazionale Fisica Nucleare
(IT))\nWe investigate the vacuum expectation value (VEV) of the current d
ensity for charged quantum fields in background of locally AdS spacetime w
ith an arbitrary number of toroidally compact dimensions and in the presen
ce of a constant gauge field. Along compact dimensions the field operator
obeys quasiperiodicity conditions with arbitrary phases. The VEVs for the
charge density and the components of the current density along uncompact d
imensions vanish. The components along compact dimensions are decomposed i
nto the brane-free and brane-induced contributions. The behavior of the va
cuum currents in various asymptotic regions of the parameters is investiga
ted. Applications are given to braneworld mpdels of the Randall-Sundrum ty
pe with compact dimensions. In the special case of three-dimensional space
time\, the corresponding results are applied for the investigation of the
edge effects on the ground state current density induced in curved graphen
e tubes by an enclosed magnetic flux.\n\nhttps://indico.cern.ch/event/7697
36/contributions/3547444/
LOCATION:Yerevan\, Armenia
URL:https://indico.cern.ch/event/769736/contributions/3547444/
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