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000944106 019__ $$a1193112725$$a1197847318
000944106 020__ $$a9783030528447$$q(electronic book)
000944106 020__ $$a3030528448$$q(electronic book)
000944106 020__ $$z9783030528430
000944106 0247_ $$a10.1007/978-3-030-52844-7$$2doi
000944106 0248_ $$a10.1007/978-3-030-52
000944106 035__ $$aSP(OCoLC)on1198387554
000944106 035__ $$aSP(OCoLC)1198387554$$z(OCoLC)1193112725$$z(OCoLC)1197847318
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000944106 049__ $$aISEA
000944106 050_4 $$aTK7872.S8
000944106 08204 $$a530.12$$223
000944106 1001_ $$aPigneur, Marine,$$eauthor.
000944106 24510 $$aNon-equilibrium dynamics of tunnel-coupled superfluids :$$brelaxation to a phase-locked equilibrium state in a one-dimensional Bosonic Josephson Junction /$$cMarine Pigneur.
000944106 264_1 $$aCham, Switzerland :$$bSpringer,$$c[2020]
000944106 300__ $$a1 online resource (xx, 187 pages) :$$billustrations.
000944106 336__ $$atext$$btxt$$2rdacontent
000944106 337__ $$acomputer$$bc$$2rdamedia
000944106 338__ $$aonline resource$$bcr$$2rdacarrier
000944106 4901_ $$aSpringer theses,$$x2190-5061
000944106 500__ $$aDoctoral thesis accepted by Atominstitut TU Wien, Vienna Austria."
000944106 504__ $$aIncludes bibliographical references.
000944106 5050_ $$aIntroduction -- Theoretical Framework -- Experimental Setup and Measurement of the Observables -- Relaxation of the Josephson Oscillations in a 1D-BJJ -- Transition to a Relaxation-Free Regime -- Outlook: Consequence of a Relaxation on the Splitting of a 1D Bose Gas.
000944106 506__ $$aAccess limited to authorized users.
000944106 520__ $$aThe relaxation of isolated quantum many-body systems is a major unsolved problem of modern physics, which is connected to many fundamental questions. However, realizations of quantum many-body systems which are both well isolated from their environment and accessible to experimental study are scarce. In recent years, the field has experienced rapid progress, partly attributed to ultra-cold atoms. This book presents the experimental study of a relaxation phenomenon occurring in a one-dimensional Bosonic Josephson Junction. The system consists of two 1D quasi Bose-Einstein condensates of 87Rb, magnetically trapped on an atom chip. Using radio-frequency dressing, the author deforms a single harmonic trap, in which the atoms are initially condensed, into a double-well potential and realizes a splitting of the wave function. A large spatial separation and a tilt of the double-well enable the preparation of a broad variety of initial states by precisely adjusting the initial population and relative phase of the two wave packets, while preserving the phase coherence. By re-coupling the two wave packets, the author investigates tunneling regimes such as Josephson (plasma) oscillations and macroscopic quantum self-trapping. In both regimes, the tunneling dynamics exhibits a relaxation to a phase-locked equilibrium state contradicting theoretical predictions. The experimental results are supported with an empirical model that allows quantitative discussions according to various experimental parameters. These results illustrate how strongly the non-equilibrium dynamics differ from the equilibrium one, which is well described by thermodynamics and statistical physics.
000944106 650_0 $$aJosephson junctions.
000944106 650_0 $$aRelaxation phenomena.
000944106 650_0 $$aCold gases.
000944106 650_0 $$aSuperfluidity.
000944106 77608 $$iPrint version:$$aPigneur, Marine$$tNon-Equilibrium Dynamics of Tunnel-Coupled Superfluids : Relaxation to a Phase-Locked Equilibrium State in a One-Dimensional Bosonic Josephson Junction$$dCham : Springer International Publishing AG,c2020$$z9783030528430
000944106 830_0 $$aSpringer theses.$$x2190-5061
000944106 852__ $$bebk
000944106 85640 $$3SpringerLink$$uhttps://univsouthin.idm.oclc.org/login?url=https://dx.doi.org/10.1007/978-3-030-52844-7$$zOnline Access
000944106 909CO $$ooai:library.usi.edu:944106$$pGLOBAL_SET
000944106 980__ $$aEBOOK
000944106 980__ $$aBIB
000944106 982__ $$aEbook
000944106 983__ $$aOnline
000944106 994__ $$a92$$bISE