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相关论文: Calibrating dipolar interaction in an atomic conde…

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We study the family of static and moving dark solitons in quasi-one-dimensional dipolar Bose-Einstein condensates, exploring their modified form and interactions. The density dip of the soliton acts as a giant anti-dipole which adds a…

量子气体 · 物理学 2015-12-02 T. Bland , M. J. Edmonds , N. P. Proukakis , A. M. Martin , D. H. J. O'Dell , N. G. Parker

Rydberg-atom ensembles are switched from a weakly- into a strongly-interacting regime via adiabatic transformation of the atoms from an approximately non-polar into a highly dipolar quantum state. The resultant electric dipole-dipole forces…

原子物理 · 物理学 2016-11-16 N. Thaicharoen , L. F. Gonçalves , G. Raithel

We investigate Bose-Einstein condensates in bubble trap potentials in the presence of a small gravity. In particular, we focus on thin shells and study both contact and dipolar interacting condensates. We first analyze the effects of the…

量子气体 · 物理学 2022-02-22 Maria Arazo , Ricardo Mayol , Montserrat Guilleumas

Deposits of dipolar particles are investigated by means of extensive Monte Carlo simulations. We found that the effect of the interactions is described by an initial, non-universal, scaling regime characterized by orientationally ordered…

统计力学 · 物理学 2009-11-10 F. de los Santos , J. M. Tavares , M. Tasinkevych , M. M. Telo da Gama

New effects of polarization multistability and polarization hysteresis in a coherently driven polariton condensate in a semiconductor microcavity are predicted and theoretically analyzed. The multistability arises due to…

We have studied the tunability of the interaction between permanent dipoles in Bose-Einstein condensates. Based on time-dependent control of the anisotropy of the dipolar interaction, we show that even the very weak magnetic dipole coupling…

凝聚态物理 · 物理学 2009-11-07 Stefano Giovanazzi , Axel Gorlitz , Tilman Pfau

We present a thermodynamic description of ultracold gases with dipolar interactions which properly accounts for the long-range nature and broken rotation invariance of the interactions. It involves an additional thermodynamic field…

量子气体 · 物理学 2025-07-16 Wilhelm Zwerger

The transmission spectrum of two dipole-dipole coupled atoms interacting with a single-mode optical cavity in strong coupling regime is investigated theoretically for the lower and higher excitation cases, respectively. The dressed states…

量子物理 · 物理学 2014-04-30 Yuqing Zhang , Lei Tan , Peter Barker

We present analysis of a system of three two-level atoms interacting with each other through the dipole-dipole interaction. The interaction manifests between excited state of one of the atoms and the ground state of its nearest neighbour.…

原子物理 · 物理学 2014-02-18 P Anantha Lakshmi , Ashoka Vudayagiri , Shaik Ahmed

Dipolar interactions govern the structure and dynamics of many soft-matter systems, from molecular to colloids assemblies. When dipole moments are induced by an external field, mutual interactions lead to a many-body magnetization response…

软凝聚态物质 · 物理学 2026-01-30 Lucas H. P. Cunha

We determine exactly the non-retarded Casimir-Polder interaction between a neutral but polarizable particle and a perfectly reflecting sheet containing a circular hole. The calculation reveals a strong dependence of the interaction on the…

原子物理 · 物理学 2015-03-19 Claudia Eberlein , Robert Zietal

We analyze the physics of cold dipolar gases in quasi one-dimensional geometries, showing that the confinement-induced scattering resonances produced by the transversal trapping are crucially affected by the dipole-dipole interaction. As a…

其他凝聚态物理 · 物理学 2009-11-13 S. Sinha , L. Santos

We consider a Bose-Einstein condensate of polar molecules in a harmonic trap, where the effective dipole may be tuned by an external field. We demonstrate that taking into account the dependence of the scattering length on the dipole moment…

统计力学 · 物理学 2009-11-11 Shai Ronen , Daniele C. E. Bortolotti , D. Blume , John L. Bohn

The effect of dipole-dipole interaction, the initial relative phase and the coupling strength with the cavity on the dynamics of three two level atoms in the good and the bad cavity regime are investigated. It is found that the presence of…

量子物理 · 物理学 2017-01-20 Salman Khan , Munsif Jan

Van der Waals interactions are ubiquitous and they play an important role for the stability of materials. Current understanding of this type of coupling is based on linear response theory, while optical nonlinearities are rarely considered…

材料科学 · 物理学 2024-08-27 Dai-Nam Le , Pablo Rodriguez-Lopez , Lilia M. Woods

Recently observed signatures of Bose-Einstein condensation and superfluidity of dipolar excitons have drawn enormous attention to excitonic semiconductor bilayers. In superfluids, stabilization and observation of vortex matter is usually a…

其他凝聚态物理 · 物理学 2025-07-29 Sara Conti , Andrey Chaves , Luis A. Pena Ardila , David Neilson , Milorad V. Milosevic

We present a theory that explains the experimentally observed crystallisation of a dilute dysprosium condensate into a lattice of droplets. The key ingredient of our theory is a conservative three-body interaction which stabilises the…

量子气体 · 物理学 2015-12-31 R. N. Bisset , P. B. Blakie

Using the general expressions for level shifts obtained from the master equation for a small system interacting with a large one considered as a reservoir, we calculate the dispersive potentials between an atom and a wall in the dipole…

量子物理 · 物理学 2009-11-13 T. N. C. Mendes , C. Farina

We investigate the effect of dipolar interactions in one-dimensional systems in connection with the possibility of observing exotic many-body effects with trapped atomic and molecular dipolar gases. By combining analytical and numerical…

量子气体 · 物理学 2014-12-09 M. Di Dio , L. Barbiero , A. Recati , M. Dalmonte

We develop a perturbative treatment of induced dipole-dipole interactions in the diffusive transport of electromagnetic waves through disordered atomic clouds. The approach is exact at order two in the atomic density and accounts for the…

无序系统与神经网络 · 物理学 2016-08-01 Nicolas Cherroret , Dominique Delande , Bart A. van Tiggelen