Fluid structure of 1D spinful Fermi gases with long-range interactions

被引：2

作者：

Colella, E. ^{[1
]}

Chiofalo, M. L. ^{[2
,3
]}

Barsanti, M. ^{[4
,5
]}

Rossini, D. ^{[2
,3
]}

Citro, R. ^{[6
,7
]}

机构：

[1] Univ Innsbruck, Inst Theoret Phys, Tech Str 21-3, A-6020 Innsbruck, Austria

[2] Univ Pisa, Dipartimento Fis Enrico Fermi, Largo Bruno Pontecorvo 3, I-156127 Pisa, Italy

[3] Univ Pisa, Ist Nazl Fis Nucl, Largo Bruno Pontecorvo 3, I-156127 Pisa, Italy

[4] Univ Pisa, Dipartimento Ingn Civile & Ind, I-56124 Pisa, Italy

[5] Univ Pisa, Ist Nazl Fis Nucl, I-56124 Pisa, Italy

[6] Univ Salerno, Dipartimento Fis ER Caianiello, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy

[7] Ist Nazl Fis Nucl, Sez Napoli, Grp Collegato Salerno, Salerno, Italy

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2019年 / 52卷 / 21期

关键词：

cavity QED; superfluidity; strongly correlated fluids in 1D; spin density waves; density waves;

D O I：

10.1088/1361-6455/ab410f

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We discuss the fluid structure in the quantum phases of a 1D spinful Fermi gas of atoms interacting via an infinitely long-range coupling, as it may result from a photon-mediated two-body coupling in optical cavities. The system reveals a rich physics, where the spin/charge-density wave and superfluid-like order compete with each other. Following our previous work based on a combined mean-field, exact diagonalization and bosonization analysis, we provide the phase diagram of the system and discuss the structure of the fluid, addressing the main features in momentum space of the order parameters, momentum distribution and two-body correlations. We highlight that the nesting of the Fermi surface in 1D ultimately drives the formation of periodic structures commensurate with the cavity-induced mean-field potential.

引用

页数：14

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