Two-Component Spin–Orbit-Coupled Bose–Einstein Condensates with Soft-Core Long Range Interactions Confined in Concentrically Coupled Annular Traps

Chen, Guangping; Han, Wei; Tu, Pu; Qiao, Chang-Bing; Zhang, Xiaofei

doi:10.7566/jpsj.91.114301

Cited by 2 publications

(2 citation statements)

References 32 publications

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“…Previous work has shown that the interplay between the spin-orbit coupling (SOC) and the toroidal trap results in a rich variety of ground states, such as a modified stripe, an alternately arranged stripe, and countercircling states [33]. In the presence of non-local Rydberg interactions, the system will exhibit various novel supersolid states under the combined effects of SOC and non-local Rydberg interactions [34,35].…”

Section: Introductionmentioning

confidence: 99%

Ground state of Rydberg-dressed Bose gas confined in a toroidal trap

Wang,

Yang,

Liu

et al. 2024

Commun. Theor. Phys.

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The experimental realization of Rydberg dressing technology in ultracold atomic systems provides another superior platform for studying novel states of matter and macroscopic quantum phenomena. In this work, based on the mean-field theory, we have investigated the ground-state phases of a two-component Bose-Einstein condensate with Rydberg interaction and confined in a toroidal trap. The effects of Rydberg interaction and external potential, especially the Rydberg blockade radius, on the ground-state structure of such a system have been investigated in full parameter space. Our results show that the Rydberg blockade radius, which can be regarded as another controllable parameter, can be used to obtain a variety of ground-state phases. More interestingly, it is found that for weak Rydberg interaction, the Rydberg blockade radius breaks the spontaneous rotational symmetry of the system, leading to the formation of a discrete unit cell structure. For strongly interacting cases, it can be used to realize different order of discrete rotational symmetry breaking.

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Section: Introductionmentioning

confidence: 99%

Ground state of Rydberg-dressed Bose gas confined in a toroidal trap

Wang,

Yang,

Liu

et al. 2024

Commun. Theor. Phys.

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“…In real experiments, ultracold atomic gases are trapped by an external potential, such as the harmonic trap [30,31], optical lattice [32], concentrically coupled annular traps [33,34], toroidal trap [35][36][37][38], radially periodic trap [39], and so on. Several studies have explored the effects of SOC and long-range soft-core interactions on BEC [40][41][42]. Wang et al investigated BEC with Rashba type of SOC and trapped in radially periodic potentials, showing that SOC can induce phase transition of the system and form alternatively arranged lumps [39].…”

Section: Introductionmentioning

confidence: 99%

Rydberg-dressed Bose–Einstein condensate with spin–orbit coupling confined in a radially periodic potential

Wang²,

Shao³

et al. 2023

J. Phys. B: At. Mol. Opt. Phys.

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The use of Rydberg dressing technology to achieve long-range soft-core interaction in Bose Einstein condensates opens up new avenues for exploration of supersolid and its related phenomenon. We investigate the ground state of a two-component spin-orbit-coupled Bose-Einstein condensates with both long-range soft-core and contact interactions in radially periodic potentials. Our results show that the ground-state structures of the system are strongly influenced by spin-orbit coupling, contact interactions, long-range soft-core interactions, and the amplitude of the external potential. We find that such parameters can been used to induce desired ground-states structures, such as necklace structure of lump, striped standing wave, and especially ring dark soliton. Furthermore, we observethat the long-range soft-core interactions are used to manipulate the transition between miscible immiscible phases like contact interactions. Our research provides another degree of freedom for manipulating supersolids in spin-orbit-coupled Bose-Einstein condensates.

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Two-Component Spin–Orbit-Coupled Bose–Einstein Condensates with Soft-Core Long Range Interactions Confined in Concentrically Coupled Annular Traps

Cited by 2 publications

References 32 publications

Ground state of Rydberg-dressed Bose gas confined in a toroidal trap

Ground state of Rydberg-dressed Bose gas confined in a toroidal trap

Rydberg-dressed Bose–Einstein condensate with spin–orbit coupling confined in a radially periodic potential

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