Electric quantum walks with individual atoms
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Electric quantum walks with individual atoms. / Genske, Maximilian; Alt, Wolfgang; Steffen, Andreas; Werner, Albert H.; Werner, Reinhard F.; Meschede, Dieter; Alberti, Andrea.
In: Physical Review Letters, Vol. 110, No. 19, 190601, 07.05.2013.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Electric quantum walks with individual atoms
AU - Genske, Maximilian
AU - Alt, Wolfgang
AU - Steffen, Andreas
AU - Werner, Albert H.
AU - Werner, Reinhard F.
AU - Meschede, Dieter
AU - Alberti, Andrea
PY - 2013/5/7
Y1 - 2013/5/7
N2 - We report on the experimental realization of electric quantum walks, which mimic the effect of an electric field on a charged particle in a lattice. Starting from a textbook implementation of discrete-time quantum walks, we introduce an extra operation in each step to implement the effect of the field. The recorded dynamics of such a quantum particle exhibits features closely related to Bloch oscillations and interband tunneling. In particular, we explore the regime of strong fields, demonstrating contrasting quantum behaviors: quantum resonances versus dynamical localization depending on whether the accumulated Bloch phase is a rational or irrational fraction of 2π.
AB - We report on the experimental realization of electric quantum walks, which mimic the effect of an electric field on a charged particle in a lattice. Starting from a textbook implementation of discrete-time quantum walks, we introduce an extra operation in each step to implement the effect of the field. The recorded dynamics of such a quantum particle exhibits features closely related to Bloch oscillations and interband tunneling. In particular, we explore the regime of strong fields, demonstrating contrasting quantum behaviors: quantum resonances versus dynamical localization depending on whether the accumulated Bloch phase is a rational or irrational fraction of 2π.
UR - http://www.scopus.com/inward/record.url?scp=84877325774&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.110.190601
DO - 10.1103/PhysRevLett.110.190601
M3 - Journal article
AN - SCOPUS:84877325774
VL - 110
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 19
M1 - 190601
ER -
ID: 256316487