Zobrazeno 1 - 10
of 58 548
pro vyhledávání: '"Bose Einstein Condensate"'
We study a Bose-Einstein condensate under the effects of the non-condensate atomic cloud. We model the resulting linear interaction of the condensate with the atomic gas as a quenched disorder. Using the distributional zeta function method, we obtain
Externí odkaz:
http://arxiv.org/abs/2412.11204
Autor:
Rudra, Prabir
In this work, we study the gravitational collapse procedure in generalized Vaidya spacetime with Bose-Einstein condensate dark matter density profile. We use the generalized Vaidya metric to simulate the spacetime of a big star and subsequently obtai
Externí odkaz:
http://arxiv.org/abs/2411.02031
Autor:
Liu, Sheng, Zhang, Yong-Sheng
We investigate the quench dynamics of a two-dimensional Rashba spin-orbit coupled Bose-Einstein condensate. Our study focuses on quenching the system from a zero-momentum phase to a plane-wave phase. During this quench, topological defects emerge in
Externí odkaz:
http://arxiv.org/abs/2412.18850
In this article, we study the existence and asymptotic properties of prescribed mass standing waves for the rotating dipolar Gross-Pitaevskii equation with a harmonic potential in the unstable regime. This equation arises as an effective model descri
Externí odkaz:
http://arxiv.org/abs/2412.09890
Autor:
Wang, Xiao-Qiong, Zeng, Rui-Lang, Zhang, Zi-Yao, Tian, Chushun, Zhang, Shizhong, Hemmerich, Andreas, Xu, Zhi-Fang
Understanding and controlling non-equilibrium processes at ultralow temperatures are central to quantum physics and technology. In such extreme environments, quantum coherence and dissipation can interact intimately to give rise to intriguing thermal
Externí odkaz:
http://arxiv.org/abs/2412.06240
Autor:
Morris, Sebastian J., Ho, Christopher J., Fischer, Simon M., Etrych, Jiří, Martirosyan, Gevorg, Hadzibabic, Zoran, Eigen, Christoph
We study the collapse of an attractive Bose-Einstein condensate, where an unstable system evolves towards a singularity, by numerically solving the underlying cubic-quintic nonlinear Schr\"odinger equation. We find good agreement between our simulati
Externí odkaz:
http://arxiv.org/abs/2411.19948
We present a theoretical study of the collective excitations of the supersolid annular stripe phase of a spin-orbital-angular-momentum-coupled (SOAM-coupled) spin-1 Bose-Einstein condensate. The annular stripe phase simultaneously breaks two continuo
Externí odkaz:
http://arxiv.org/abs/2411.17586
When two or more energy bands become degenerate at a singular point in the momentum space, such singularity, or ``Dirac points", gives rise to intriguing quantum phenomena as well as unusual material properties. Systems at the Dirac points can posses
Externí odkaz:
http://arxiv.org/abs/2411.16287
Autor:
Lampart, Jonas, Triay, Arnaud
We analyze the many-body Hamiltonian describing a mobile impurity immersed in a Bose-Einstein condensate (BEC). Using exact unitary transformations and rigorous error estimates, we show the validity of the Bogoliubov-Fr\"ohlich Hamiltonian for the Bo
Externí odkaz:
http://arxiv.org/abs/2411.11655
Recently, the simulation of moir\'e physics using cold atom platforms has gained significant attention. These platforms provide an opportunity to explore novel aspects of moir\'e physics that go beyond the limits of traditional condensed matter syste
Externí odkaz:
http://arxiv.org/abs/2412.14731