Patterning by dynamically unstable spin–orbit-coupled Bose–Einstein condensates
نویسندگان
چکیده
In a two-dimensional atomic Bose-Einstein condensate, we demonstrate Rashba spin-orbit coupling can always introduce dynamical instability into specific zero-quasimomentum states in all parameter regimes. During the evolution of states, such spin-orbit-coupling-induced fragment and lead to dynamically patterning process. The features formed patterns are identified from symmetries Bogoliubov-de Gennes Hamiltonian. We show that spin-orbit-coupled condensates provide an interesting platform for investigation pattern formations.
منابع مشابه
Unstable avoided crossing in coupled spinor condensates.
We consider the dynamics of a Bose-Einstein condensate with two internal states, coupled through a coherent drive. We focus on a specific quench protocol, in which the sign of the coupling field is suddenly changed. At a mean-field level, the system is transferred from a minimum to a maximum of the coupling energy and can remain dynamically stable, in spite of the development of negative-freque...
متن کاملDynamically unstable syndesmosis injuries.
Distal tibiofibular syndesmosis injuries are complex injuries that often result in extended loss of playing time for athletes. Unstable syndesmosis injuries are uniformly reduced and stabilized by numerous methods. Controversy arises from syndesmosis injuries that are stable on stress radiographs but functionally unstable with loading of the ankle during athletic activity. The authors present a...
متن کاملIntegrable dynamics of coupled Fermi-Bose condensates
Emil A. Yuzbashyan,1 Vadim B. Kuznetsov,2 and Boris L. Altshuler3 1Center for Materials Theory, Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA 2Department of Applied Mathematics, University of Leeds Leeds, LS2 9JT, United Kingdom 3Physics Department, Princeton University, Princeton, New Jersey 08544, USA Received 29 June 2005; revised manuscript recei...
متن کاملSpin-orbit coupled spinor Bose-Einstein condensates.
An effective spin-orbit coupling can be generated in a cold atom system by engineering atom-light interactions. In this Letter we study spin-1/2 and spin-1 Bose-Einstein condensates with Rashba spin-orbit coupling, and find that the condensate wave function will develop nontrivial structures. From numerical simulation we have identified two different phases. In one phase the ground state is a s...
متن کاملBifurcation effects in coupled Bose-Einstein condensates
When Bose-Einstein condensed ~BEC! systems are coupled, dramatic phenomena occur, owing to macroscopic phase coherence. Effective second-quantized Hamiltonians are often used as simple models @1–3,5–7# to bring out the characteristic behavior of these systems. Very similar Hamiltonians are used @8–10# to model striking effects in vibrational spectra of polyatomic molecules, related to classical...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chaos Solitons & Fractals
سال: 2023
ISSN: ['1873-2887', '0960-0779']
DOI: https://doi.org/10.1016/j.chaos.2023.113835