[1] Elliott E, Joseph J A, Thomas J E[J]. Phys. Rev. Lett., 112, 040405(2014).

[2] Krinner S, Esslinger T, Brantut J[J]. J. Phys.: Condens. Matter, 29, 343003(2017).

[3] Anderson R, Wang F D, Xu P H, Venu V, Trotzky S, Chevy F, Thywissen J H[J]. arXiv:, 1712, 09965(2017).

[4] Brown P T, Mitra D, Guardado-Sanchez E, Nourafkan R, Reymbaut A, Bergeron S, Tremblay A M S, Kokalj J, Huse D, Schauss P, Bakr W S[J]. arXiv:, 1802, 09456(2018).

[5] Nichols M A, Cheuk L W, Okan M, Hartke T R, Mendez E, Senthil T, Khatami E, Zhang H, Zwierlein M W[J]. arXiv:, 1802, 10018(2018).

[6] Sommer A, Ku M, Roati G, Zwierlein M W[J]. Nature, 472, 201(2011).

[7] Bardon A B, Beattie S, Luciuk C, Cairncross W, Fine D, Cheng N S, Edge G J A, Taylor E, Zhang S Z, Trotzky S, Thywissen J H[J]. Science, 344, 722(2014).

[8] Koschorreck M, Pertot D, Vogt E, Köhl M[J]. Nature Physics, 9, 1(2013).

[9] Luciuk C, Smale S, Böttcher F, Sharum H, Olsen B A, Trotzky S, Enss T, and Thywissen J H[J]. Phys. Rev. Lett., 118, 130405(2017).

[10] Leggett A[J]. Rev. Mod. Phys., 73, 307(2001).

[11] Pethick C J, Smith H[J]. Bose –Einstein Condensation in Dilute Gases, 109(2011).

[12] [J]. Bose-Einstein Condensation, 129(2003).

[13] Braaten E, Hagen P, Hammer H W, and Platter L[J]. Phys. Rev. A, 86, 012711(2012).

[14] Bertulani C A, [J]. Nuclear Physics A, 712, 37(2002).

[15] Yu Z H, Thywissen J H, and Zhang S Z[J]. Phys. Rev. Lett., 115, 135304(2015).

[16] Bloch I, [J]. Rev. Mod. Phys., 80, 885(2008).

[17] Leggett A[J]. Quantum Liquids, 120(2006).

[18] [J]. Phys. Rev. Lett., 118, 105303(2017).

[19] Liu B, [J]. Phys. Rev. A, 95, 013623(2017).

[20] Kanász-Nagy M, Glazman L, [J]. Phys. Rev. Lett., 117, 255302(2016).

[21] Thomas S[J]. Annual Review of Nuclear and Particle Science, 64, 125(2014).

[22] Joseph J A, Elliott E, and Thomas J E[J]. Phys. Rev. Lett., 115, 020401(2015).

[23] Leggett A[J]. J. Phys. C, Solid St. Physics, 3, 448(1969).

[24] Lhuillier C, Laloë F[J]. J. Physique, 43, 197(1982).

[25] [J]. Advances In Atomic Physics: An Overview, 497(2011).

[26] Bruun G M[J]. New J. Phys., 13, 035005(2011).

[27] Enss T[J]. Phys. Rev. A, 88, 033630(2013).

[28] Trotzky S, Beattie S, Luciuk C, Smale S, Bardon A B, Enss T, Taylor E, Zhang S Z, and Thywissen J H[J]. Phys. Rev. Lett., 114, 015301(2015).

[29] Hartnoll S, Lucas A, Sachdev S[J]. Holographic Quantum Matter, 334(2018).