中国物理B ›› 2022, Vol. 31 ›› Issue (5): 53701-053701.doi: 10.1088/1674-1056/ac4231

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Measuring gravitational effect of superintense laser by spin-squeezed Bose—Einstein condensates interferometer

Eng Boon Ng and C. H. Raymond Ooi   

  1. Department of Physics, University of Malaya, Kuala Lumpur 50603, Malaysia
  • 收稿日期:2021-08-03 修回日期:2021-12-01 出版日期:2022-05-14 发布日期:2022-04-21
  • 通讯作者: Eng Boon Ng,E-mail:engboon@live.com.my;C.H.Raymond Ooi,E-mail:rooi@um.edu.my E-mail:engboon@live.com.my;rooi@um.edu.my

Measuring gravitational effect of superintense laser by spin-squeezed Bose—Einstein condensates interferometer

Eng Boon Ng and C. H. Raymond Ooi   

  1. Department of Physics, University of Malaya, Kuala Lumpur 50603, Malaysia
  • Received:2021-08-03 Revised:2021-12-01 Online:2022-05-14 Published:2022-04-21
  • Contact: Eng Boon Ng,E-mail:engboon@live.com.my;C.H.Raymond Ooi,E-mail:rooi@um.edu.my E-mail:engboon@live.com.my;rooi@um.edu.my
  • About author:2021-12-11

摘要: We consider an extremely intense laser, enclosed by an atom interferometer. The gravitational potential generated from the high-intensity laser is solved from the Einstein field equation under the Newtonian limit. We compute the strength of the gravitational force and study the feasibility of measuring the force by the atom interferometer. The intense laser field from the laser pulse can induce a phase change in the interferometer with Bose-Einstein condensates. We push up the sensitivity limit of the interferometer with Bose-Einstein condensates by spin-squeezing effect and determine the sensitivity gap for measuring the gravitational effect from intense laser by atom interferometer.

关键词: intense laser field, atom interferometer, Bose-Einstein condensates, spin-squeezing

Abstract: We consider an extremely intense laser, enclosed by an atom interferometer. The gravitational potential generated from the high-intensity laser is solved from the Einstein field equation under the Newtonian limit. We compute the strength of the gravitational force and study the feasibility of measuring the force by the atom interferometer. The intense laser field from the laser pulse can induce a phase change in the interferometer with Bose-Einstein condensates. We push up the sensitivity limit of the interferometer with Bose-Einstein condensates by spin-squeezing effect and determine the sensitivity gap for measuring the gravitational effect from intense laser by atom interferometer.

Key words: intense laser field, atom interferometer, Bose-Einstein condensates, spin-squeezing

中图分类号:  (Atom interferometry techniques)

  • 37.25.+k
67.85.-d (Ultracold gases, trapped gases)