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Three-dimensional solitons in Rydberg-dressed cold atomic gases with spin-orbit coupling
Yuan Zhao1,2, Heng-Jie Hu1,3, Qian-Qian Zhou1,3
1Laboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning, 437100, China.
Scientific Reports
|October 23, 2023
Summary
Spin-orbit coupling and Rydberg interactions stabilize three-dimensional solitons in Bose-Einstein condensates. These forces enhance soliton stability, resisting collapse and expanding their potential applications.
Area of Science:
- Atomic physics
- Quantum mechanics
- Condensed matter physics
Background:
- Bose-Einstein condensates (BECs) are quantum states of matter.
- Spinor BECs involve internal spin states.
- Rydberg atoms are highly excited atoms with unique interactions.
Purpose of the Study:
- To investigate the stability of three-dimensional (3D) solitons in spinor Bose-Einstein condensates of Rydberg atoms.
- To explore the role of spin-orbit coupling (SOC) and Rydberg interactions in soliton stabilization.
- To determine the dependence of soliton stability on interaction strengths and atomic radius.
Main Methods:
- Numerical simulations of 3D solitons.
- Analysis of semi-vortex (SV) and mixed-mode (MM) soliton symmetries.
- Systematic variation of spin-orbit coupling and Rydberg interaction parameters.
Main Results:
- Spin-orbit coupling and long-range Rydberg interactions stabilize 3D solitons.
- The interplay of SOC and Rydberg interactions enhances resistance to collapse.
- The stability range is determined by the strengths of SOC, Rydberg interactions, and the soft-core atomic radius.
Conclusions:
- 3D solitons in spinor Rydberg BECs can be stabilized by SOC and Rydberg interactions.
- These interactions offer a mechanism to control soliton stability and prevent collapse.
- The findings provide insights into the behavior of quantum matter under specific interaction regimes.
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