Task-optimized control of open quantum systems

J Clausen, G Bensky, G Kurizki - Physical Review A—Atomic, Molecular, and …, 2012 - APS
We develop a general optimization strategy for performing a chosen unitary or nonunitary
task on an open quantum system. The goal is to design a controlled time-dependent system …

Critical exponents for an impurity in a bosonic Josephson junction: Position measurement as a phase transition

J Mumford, DHJ O'Dell - Physical Review A, 2014 - APS
We use fidelity susceptibility to calculate quantum critical scaling exponents for a system
consisting of N identical bosons interacting with a single impurity atom in a double-well …

Switch between the types of the symmetry breaking bifurcation in optically induced photorefractive rotational double-well potential

G Chen, Z Luo, J Wu, M Wu - Journal of the Physical Society of …, 2013 - journals.jps.jp
We study the possibility of switching the types of symmetry breaking bifurcation (SBB) in the
cylinder shell waveguide with helical double-well potential along propagation direction. This …

Two-dimensional solitons in periodically modulated double-well potentials

C Sudheesh, N Bar-Gill, BA Malomed… - Journal of Physics B …, 2010 - iopscience.iop.org
We introduce a model of a two-dimensional (2D) self-attractive medium embedded into a
quasi-1D symmetric double-well potential (DWP), whose depth is subject to periodic …