Two-mode Bose-Einstein condensate in a high-frequency driving field that directly couples the two modes
نویسندگان
چکیده
Qi Zhang, Peter Hänggi, and Jiangbin Gong* Department of Physics and Center for Computational Science and Engineering, National University of Singapore,117542, Republic of Singapore Institut für Physik, Universität Augsburg, Universitätsstraße 1, D-86135 Augsburg, Germany NUS Graduate School for Integrative Sciences and Engineering, Singapore 117597, Republic of Singapore Received 28 November 2007; published 13 May 2008
منابع مشابه
Superfluid properties of a Bose-Einstein condensate in an optical lattice confined in a cavity
We study the effect of a one dimensional optical lattice in a cavity field with quantum properties on the superfluid dynamics of a Bose-Einstein condensate(BEC). In the cavity the influence of atomic backaction and the external driving pump become important and modify the optical potential. Due to the coupling between the condensate wavefunction and the cavity modes, the cavity light field deve...
متن کاملCoupled eigenmodes in a two-component Bose-Einstein condensate
We have studied the elementary excitations in a two component Bose-Einstein condensate. We concentrate on the breathing modes and find the elementary excitations to possess avoided crossings and regions of coalescing oscillations where both components of the condensates oscillate with the same frequency. For large repulsive interactions between the condensates, their oscillational modes tend to...
متن کاملEntanglement of two-mode Bose-Einstein condensates
We investigate the entanglement characteristics of two general bimodal Bose-Einstein condensates—a pair of tunnel-coupled Bose-Einstein condensates and the atom-molecule Bose-Einstein condensate. We argue that the entanglement is only physically meaningful if the system is viewed as a bipartite system, where the subsystems are the two modes. The indistinguishibility of the particles in the cond...
متن کاملQuadrupole collective modes in trapped finite-temperature Bose-Einstein condensates.
Finite-temperature simulations are used to study quadrupole excitations of a trapped Bose-Einstein condensate. We focus specifically on the m = 0 mode, where a long-standing theoretical problem is to account for an anomalous variation of the mode frequency with temperature. We explain this behavior in terms of the excitation of two separate modes, corresponding to the coupled motion of the cond...
متن کاملCavity optomechanics with a trapped, interacting Bose-Einstein condensate
The dispersive interaction of a Bose-Einstein condensate with a single mode of a high-finesse optical cavity realizes the radiation pressure coupling Hamiltonian. In this system the role of the mechanical oscillator is played by a single condensate excitation mode that is selected by the cavity mode function. We study the effect of atomic s-wave collisions and show that it merely renormalizes p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008