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Using the quantum statistical theory, the stability of a weakly interacting Fermi gas trapped in a strong magnetic field is investigated, the expression of stability condition is given, and the mechanisms of influences of interparticle interaction and magnetic field on the stability are analyzed. The results show that repulsive interaction will increase both the chemical potential and the space domain needed for system stability. But, the increasing of magnetic field strength will reduce the space domain needed for the system stability, and lower the stability of the particle number density distribution.
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Keywords:
- strong magnetic field /
- Fermi gas /
- weakly interacting /
- stability
[1] Regal C A, Ticknor C, Bohn J L, Jin D S 2003 Nature 424 47
[2] Xiong H W, Liu S J, Zhang W P, Zhan M S 2005 Phys. Rev. Lett. 95 120401
[3] Dong H, Ma Y L 2009 Chin. Phys. B 18 715
[4] Qin F, Chen J S 2009 Phys. Rev. A 79 043625
[5] Xiong H W, Liu S J, Zhan M S 2006 Phys. Rev. A 74 033602
[6] Chen J S, Cheng C M, Li J R, Wang Y P 2007 Phys. Rev. A 76 033617
[7] Men F D, Fan Z L 2010 Chin. Phys. B 19 030205
[8] Modugno G, Roati G, Riboli F 2002 Science 297 2240
[9] Amusia M Y, Msezane A Z, Shaginyan V R 2002 Phys. Lett. A 293 205
[10] Yan D Q 2006 Acta Phys. Sin. 55 3912 (in Chinese) [袁都奇 2006 55 3912]
[11] Men F D, Liu H 2006 Chin. Phys. B 15 2856
[12] Xue J K, Ma Y T 2010 J. Northwest Normal Univ. (Natural Science) 46 26 (in Chinese) [薛具奎, 马玉亭 2010 西北师范大学学报 46 26]
[13] Men F D, Wang B F, He X G, Wei Q M 2011 Acta Phys. Sin. 60 080501 (in Chinese) [门福殿, 王炳福, 何晓刚, 隗群梅 2011 60 080501]
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[1] Regal C A, Ticknor C, Bohn J L, Jin D S 2003 Nature 424 47
[2] Xiong H W, Liu S J, Zhang W P, Zhan M S 2005 Phys. Rev. Lett. 95 120401
[3] Dong H, Ma Y L 2009 Chin. Phys. B 18 715
[4] Qin F, Chen J S 2009 Phys. Rev. A 79 043625
[5] Xiong H W, Liu S J, Zhan M S 2006 Phys. Rev. A 74 033602
[6] Chen J S, Cheng C M, Li J R, Wang Y P 2007 Phys. Rev. A 76 033617
[7] Men F D, Fan Z L 2010 Chin. Phys. B 19 030205
[8] Modugno G, Roati G, Riboli F 2002 Science 297 2240
[9] Amusia M Y, Msezane A Z, Shaginyan V R 2002 Phys. Lett. A 293 205
[10] Yan D Q 2006 Acta Phys. Sin. 55 3912 (in Chinese) [袁都奇 2006 55 3912]
[11] Men F D, Liu H 2006 Chin. Phys. B 15 2856
[12] Xue J K, Ma Y T 2010 J. Northwest Normal Univ. (Natural Science) 46 26 (in Chinese) [薛具奎, 马玉亭 2010 西北师范大学学报 46 26]
[13] Men F D, Wang B F, He X G, Wei Q M 2011 Acta Phys. Sin. 60 080501 (in Chinese) [门福殿, 王炳福, 何晓刚, 隗群梅 2011 60 080501]
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