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Proposal for measuring the finite-temperature Drude weight of integrable systems
ID Karrasch, Christoph (Avtor), ID Prosen, Tomaž (Avtor), ID Heidrich-Meisner, Fabian (Avtor)

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MD5: EA2524AF254EB464828E0A1FF99E306D
PID: 20.500.12556/rul/e2086dd6-b920-4c8f-be61-c100ee8214a3
URLURL - Izvorni URL, za dostop obiščite https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.060406 Povezava se odpre v novem oknu

Izvleček
Integrable models such as the spin-1/2 Heisenberg chain, the Lieb-Liniger, or the one-dimensional Hubbard model are known to avoid thermalization, which was also demonstrated in several quantum-quench experiments. Another dramatic consequence of integrability is the zero-frequency anomaly in transport coefficients, which results in ballistic finite-temperature transport, despite the presence of strong interactions. While this aspect of nonergodic dynamics has been known for a long time, there has so far not been any unambiguous experimental realization thereof. We make a concrete proposal for the observation of ballistic transport via local quantum-quench experiments in fermionic quantum-gas microscopes. Such an experiment would also unveil the coexistence of ballistic and diffusive transport channels in one and the same system and provide a means of measuring finite-temperature Drude weights. The connection between local quenches and linear-response functions is established via time-dependent Einstein relations.

Jezik:Angleški jezik
Ključne besede:quantum mechanics
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FMF - Fakulteta za matematiko in fiziko
Status publikacije:Objavljeno
Različica publikacije:Recenzirani rokopis
Založnik:American Physical Society
Leto izida:2017
Št. strani:Str. 060406-1-060406-6
Številčenje:Vol. 95, iss. 6
PID:20.500.12556/RUL-94325 Povezava se odpre v novem oknu
UDK:530.145
ISSN pri članku:2469-9950
DOI:10.1103/PhysRevB.95.060406 Povezava se odpre v novem oknu
COBISS.SI-ID:3106148 Povezava se odpre v novem oknu
Avtorske pravice:
American Physical Society
Datum objave v RUL:26.07.2017
Število ogledov:1876
Število prenosov:919
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Gradivo je del revije

Naslov:Physical review
Založnik:American Physical Society
ISSN:2469-9950
COBISS.SI-ID:2997348 Povezava se odpre v novem oknu

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:kvantna mehanika

Projekti

Financer:EC - European Commission
Program financ.:H2020
Številka projekta:694544
Naslov:Open many-body non-equilibrium systems
Akronim:OMNES

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