TY - JOUR
T1 - Exact quantum dynamics of a bosonic josephson junction
AU - Sakmann, Kaspar
AU - Streltsov, Alexej I.
AU - Alon, Ofir E.
AU - Cederbaum, Lorenz S.
PY - 2009/11/23
Y1 - 2009/11/23
N2 - The quantum dynamics of a one-dimensional bosonic Josephson junction is studied by solving the time-dependent many-boson Schrödinger equation numerically exactly. Already for weak interparticle interactions and on short time scales, the commonly employed mean-field and many-body methods are found to deviate substantially from the exact dynamics. The system exhibits rich many-body dynamics such as enhanced tunneling and a novel equilibration phenomenon of the junction depending on the interaction, which is attributed to a quick loss of coherence.
AB - The quantum dynamics of a one-dimensional bosonic Josephson junction is studied by solving the time-dependent many-boson Schrödinger equation numerically exactly. Already for weak interparticle interactions and on short time scales, the commonly employed mean-field and many-body methods are found to deviate substantially from the exact dynamics. The system exhibits rich many-body dynamics such as enhanced tunneling and a novel equilibration phenomenon of the junction depending on the interaction, which is attributed to a quick loss of coherence.
UR - http://www.scopus.com/inward/record.url?scp=72649091289&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.103.220601
DO - 10.1103/PhysRevLett.103.220601
M3 - Article
AN - SCOPUS:72649091289
SN - 0031-9007
VL - 103
JO - Physical Review Letters
JF - Physical Review Letters
IS - 22
M1 - 220601
ER -