Dynamics of quantum phase transition in an array of Josephson junctions

Anno: 2002

Autori: Dziarmaga J., Smerzi A., Zurek W.H., Bishop A.R.

Affiliazione autori: Los Alamos Natl Lab, Div Theory, Los Alamos, NM 87545 USA; Jagiellonian Univ, Inst Fizyki, PL-30059 Krakow, Poland; Ist Nazl Fis Mat, I-34014 Trieste, Italy; Scuola Int Super Studi Avanzati, I-34014 Trieste, Italy.

Abstract: We study the dynamics of the Mott insulator-superfluid quantum phase transition in a periodic 1D array of Josephson junctions. We show that crossing the critical point at a finite rate with a quench time tau(Q) induces finite quantum fluctuations of the current around the loop proportional to tau(Q)(-)(1/6). This scaling could be experimentally verified with an array of weakly coupled Bose-Einstein condensates or superconducting grains.

Giornale/Rivista: PHYSICAL REVIEW LETTERS

Volume: 88 (16)      Da Pagina: 167001-1  A: 167001-4

Parole chiavi: Cosmological Experiments; Defect Formation
DOI: 10.1103/PhysRevLett.88.167001

Citazioni: 53
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29
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