Matches in SemOpenAlex for { <https://semopenalex.org/work/W4381550116> ?p ?o ?g. }
- W4381550116 endingPage "1042" @default.
- W4381550116 startingPage "1042" @default.
- W4381550116 abstract "We study the phenomenon of cosmological particle production of Dirac fermions in a Friedman-Robertson-Walker spacetime, focusing on a (1+1)-dimensional case in which the evolution of the scale factor is set by the equations of Jackiw-Teitelboim gravity. As a first step towards a quantum simulation of this phenomenon, we consider two possible lattice regularizations, which allow us to explore the interplay of particle production and topological phenomena in spacetimes with a boundary. In particular, for a Wilson-type discretization of the Dirac field, the asymptotic Minkowski vacua connected by the intermediate expansion corresponds to symmetry-protected topological groundstates, and have a boundary manifestation in the form of zero-modes exponentially localized to the spatial boundaries. We show that particle production can also populate these zero modes, which contrasts with the situation with a naive-fermion discretization, in which conformal zero-mass fields exhibit no particle production. We present a scheme for the quantum simulation of this gravitational analogue by means of ultra-cold atoms in Raman optical lattices, which requires real-time control of the Raman-beam detuning according to the scale factor of the simulated spacetime, as well as band-mapping measurements." @default.
- W4381550116 created "2023-06-22" @default.
- W4381550116 creator A5017050666 @default.
- W4381550116 creator A5048663219 @default.
- W4381550116 creator A5092229108 @default.
- W4381550116 date "2023-06-21" @default.
- W4381550116 modified "2023-09-25" @default.
- W4381550116 title "Fermion production at the boundary of an expanding universe: a cold-atom gravitational analogue" @default.
- W4381550116 cites W1498272138 @default.
- W4381550116 cites W1500256440 @default.
- W4381550116 cites W1501955150 @default.
- W4381550116 cites W1514707913 @default.
- W4381550116 cites W1597171048 @default.
- W4381550116 cites W1621651599 @default.
- W4381550116 cites W1636187034 @default.
- W4381550116 cites W1736905368 @default.
- W4381550116 cites W1797418550 @default.
- W4381550116 cites W1847162973 @default.
- W4381550116 cites W1875695870 @default.
- W4381550116 cites W1904914631 @default.
- W4381550116 cites W1936942997 @default.
- W4381550116 cites W1963698186 @default.
- W4381550116 cites W1963988846 @default.
- W4381550116 cites W1967903203 @default.
- W4381550116 cites W1978376093 @default.
- W4381550116 cites W1979308046 @default.
- W4381550116 cites W1982358147 @default.
- W4381550116 cites W1983084300 @default.
- W4381550116 cites W1984627351 @default.
- W4381550116 cites W1986463445 @default.
- W4381550116 cites W1988559873 @default.
- W4381550116 cites W1991260972 @default.
- W4381550116 cites W1991583534 @default.
- W4381550116 cites W1992204683 @default.
- W4381550116 cites W1995034796 @default.
- W4381550116 cites W2006763149 @default.
- W4381550116 cites W2007185418 @default.
- W4381550116 cites W2007959513 @default.
- W4381550116 cites W2009076876 @default.
- W4381550116 cites W2011600774 @default.
- W4381550116 cites W2018259456 @default.
- W4381550116 cites W2020332193 @default.
- W4381550116 cites W2024584597 @default.
- W4381550116 cites W2027715970 @default.
- W4381550116 cites W2028669673 @default.
- W4381550116 cites W2028697514 @default.
- W4381550116 cites W2035413341 @default.
- W4381550116 cites W2037807652 @default.
- W4381550116 cites W2037879124 @default.
- W4381550116 cites W2039326276 @default.
- W4381550116 cites W2039685498 @default.
- W4381550116 cites W2039689566 @default.
- W4381550116 cites W2043478645 @default.
- W4381550116 cites W2055721214 @default.
- W4381550116 cites W2056404648 @default.
- W4381550116 cites W2056511881 @default.
- W4381550116 cites W2058963612 @default.
- W4381550116 cites W2064898501 @default.
- W4381550116 cites W2065805883 @default.
- W4381550116 cites W2068677244 @default.
- W4381550116 cites W2072703702 @default.
- W4381550116 cites W2075554555 @default.
- W4381550116 cites W2081013799 @default.
- W4381550116 cites W2083154822 @default.
- W4381550116 cites W2083480413 @default.
- W4381550116 cites W2087278911 @default.
- W4381550116 cites W2087491690 @default.
- W4381550116 cites W2091485113 @default.
- W4381550116 cites W2092581607 @default.
- W4381550116 cites W2097780038 @default.
- W4381550116 cites W2101743897 @default.
- W4381550116 cites W2101893110 @default.
- W4381550116 cites W2105685140 @default.
- W4381550116 cites W2116365249 @default.
- W4381550116 cites W2118148695 @default.
- W4381550116 cites W21223778 @default.
- W4381550116 cites W2131762505 @default.
- W4381550116 cites W2132568564 @default.
- W4381550116 cites W2134251287 @default.
- W4381550116 cites W2141988678 @default.
- W4381550116 cites W2153622862 @default.
- W4381550116 cites W2154547793 @default.
- W4381550116 cites W2157060807 @default.
- W4381550116 cites W2160049695 @default.
- W4381550116 cites W2161655651 @default.
- W4381550116 cites W2163394749 @default.
- W4381550116 cites W2164667254 @default.
- W4381550116 cites W2168502760 @default.
- W4381550116 cites W2168549073 @default.
- W4381550116 cites W2172949211 @default.
- W4381550116 cites W2173346706 @default.
- W4381550116 cites W2175043732 @default.
- W4381550116 cites W2175998061 @default.
- W4381550116 cites W2176395030 @default.
- W4381550116 cites W2179731956 @default.
- W4381550116 cites W2195588460 @default.
- W4381550116 cites W2215061879 @default.
- W4381550116 cites W2269532097 @default.