Pregled bibliografske jedinice broj: 1009923
Decoherence slowing down in a symmetry-broken environment
Decoherence slowing down in a symmetry-broken environment // Physical Review A, 66 (2002), 5; 052317, 6 doi:10.1103/PhysRevA.66.052317 (međunarodna recenzija, članak, ostalo)
CROSBI ID: 1009923 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Decoherence slowing down in a symmetry-broken environment
Autori
Paganelli, S. ; de Pasquale, F. ; Giampaolo, S. M.
Izvornik
Physical Review A (1050-2947) 66
(2002), 5;
052317, 6
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo
Ključne riječi
quantum information
Sažetak
We show how to characterize the temporal evolution of a single qubit interacting with a thermal bath by correlation functions of the bath under quite general hypotheses. The aim is to show how the qubit decoherence time depends on the degree of correlation of the bath. We explicitly study some spin-bath models where every spin of the environment interacts with the qubit either directly or by the mediation of a harmonic oscillator. In both cases we find an increase of the decoherence time as soon as a symmetry breaking occurs in the environment. In the latter case a possible experimental setup is discussed.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
