Laser control of the singlet-pairing process in an ultracold spinor mixture

Jie, Jianwen1,2; Yu, Yonghong2; Wang, Dajun3; Zhang, Peng2,4,5

2021-05-25

10.1103/PhysRevA.103.053321

PHYSICAL REVIEW A   影响因子和分区

2469-9926

2469-9934

In the mixture of ultracold spin-1 atoms of two different species A and B (e.g., Na-23 (A) and Rb-87 (B)), the interspecies singlet-pairing process A(+1) + B-1 reversible arrow A(-1) + B+1 can be induced by the spin-dependent interatomic interaction, where subscript +/- 1 denotes the magnetic quantum number. Nevertheless, one cannot isolate this process from other spin-changing processes, which are usually much stronger, by tuning the bias real magnetic field. As a result, it is difficult to clearly observe the singlet-pairing process and precisely measure the corresponding interaction strength. In this work we propose to control the singlet-pairing process via combining the real magnetic field and a laser-induced species-dependent synthetic magnetic field. With our approach one can significantly enhance this process and simultaneously suppress all other spin-changing processes. We illustrate our approach for both a confined two-atom system and a binary mixture of spinor Bose-Einstein condensates. Our control scheme is helpful for the precise measurement of the weak singlet-pairing interaction strength and the entanglement generation of two different atoms.

SCI ; EI

英语

第一

National Key RD Program of China[2018YFA0306502] ; NSFC["U1930201",11674393]

Optics ; Physics

Optics ; Physics, Atomic, Molecular & Chemical

WOS:000655980000004

AMER PHYSICAL SOC

20212310456516

Atoms ; Binary mixtures ; Bose-Einstein condensation ; Magnetic fields ; Quantum theory ; Statistical mechanics

Magnetism: Basic Concepts and Phenomena:701.2 ; Chemical Products Generally:804 ; Classical Physics; Quantum Theory; Relativity:931

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
2.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
3.Chinese Univ Hong Kong, Dept Phys, Hong Kong 999077, Peoples R China
4.Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China
5.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100084, Peoples R China

Jie, Jianwen,Yu, Yonghong,Wang, Dajun,et al. Laser control of the singlet-pairing process in an ultracold spinor mixture[J]. PHYSICAL REVIEW A,2021,103(5).

Jie, Jianwen,Yu, Yonghong,Wang, Dajun,&Zhang, Peng.(2021).Laser control of the singlet-pairing process in an ultracold spinor mixture.PHYSICAL REVIEW A,103(5).

Jie, Jianwen,et al."Laser control of the singlet-pairing process in an ultracold spinor mixture".PHYSICAL REVIEW A 103.5(2021).