Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms

被引：49

作者：

Baier, S. ^{[1
]}

Petter, D. ^{[1
]}

Becher, J. H. ^{[1
,3
]}

Patscheider, A. ^{[1
,2
]}

Natale, G. ^{[1
]}

Chomaz, L. ^{[1
]}

Mark, M. J. ^{[1
,2
]}

Ferlaino, F. ^{[1
,2
]}

机构：

[1] Univ Innsbruck, Inst Expt Phys, Tech Str 25, A-6020 Innsbruck, Austria

[2] Austrian Acad Sci, Inst Quantenopt & Quanteninformat, A-6020 Innsbruck, Austria

[3] Heidelberg Univ, Phys Inst, Neuenheimer Feld 226, D-69120 Heidelberg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 09期

基金：

欧盟地平线“2020”; 奥地利科学基金会;

关键词：

ULTRACOLD GASES; OPTICAL LATTICE; QUANTUM GAS;

D O I：

10.1103/PhysRevLett.121.093602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We realize a two-component dipolar Fermi gas with tunable interactions, using erbium atoms. Employing a lattice-protection technique, we selectively prepare deeply degenerate mixtures of the two lowest spin states and perform high-resolution Feshbach spectroscopy in an optical dipole trap. We identify a comparatively broad Feshbach resonance and map the interspin scattering length in its vicinity. The Fermi mixture shows a remarkable collisional stability in the strongly interacting regime, providing a first step towards studies of superfluid pairing, crossing from Cooper pairs to bound molecules, in presence of dipole-dipole interactions.

引用

页数：6

共 53 条

[1] Observation of Fermi surface deformation in a dipolar quantum gas [J].

Aikawa, K. ;

Baier, S. ;

Frisch, A. ;

Mark, M. ;

Ravensbergen, C. ;

Ferlaino, F. .

SCIENCE, 2014, 345 (6203) :1484-1487

[2] Reaching Fermi Degeneracy via Universal Dipolar Scattering [J].

Aikawa, K. ;

Frisch, A. ;

Mark, M. ;

Baier, S. ;

Grimm, R. ;

Ferlaino, F. .

PHYSICAL REVIEW LETTERS, 2014, 112 (01)

[3] Bose-Einstein Condensation of Erbium [J].

Aikawa, K. ;

Frisch, A. ;

Mark, M. ;

Baier, S. ;

Rietzler, A. ;

Grimm, R. ;

Ferlaino, F. .

PHYSICAL REVIEW LETTERS, 2012, 108 (21)

[4] Extended Bose-Hubbard models with ultracold magnetic atoms [J].

Baier, S. ;

Mark, M. J. ;

Petter, D. ;

Aikawa, K. ;

Chomaz, L. ;

Cai, Z. ;

Baranov, M. ;

Zoller, P. ;

Ferlaino, F. .

SCIENCE, 2016, 352 (6282) :201-205

[5]

Baier S., IN PRESS

[6] Condensed Matter Theory of Dipolar Quantum Gases [J].

Baranov, M. A. ;

Dalmonte, M. ;

Pupillo, G. ;

Zoller, P. .

CHEMICAL REVIEWS, 2012, 112 (09) :5012-5061

[7] Observation of low-field Fano-Feshbach resonances in ultracold gases of dysprosium [J].

Baumann, Kristian ;

Burdick, Nathaniel Q. ;

Lu, Mingwu ;

Lev, Benjamin L. .

PHYSICAL REVIEW A, 2014, 89 (02)

[8] Anisotropic polarizability of erbium atoms [J].

Becher, J. H. ;

Baier, S. ;

Aikawa, K. ;

Lepers, M. ;

Wyart, J. F. ;

Dulieu, O. ;

Ferlaino, F. .

PHYSICAL REVIEW A, 2018, 97 (01)

[9] Many-body physics with ultracold gases [J].

Bloch, Immanuel ;

Dalibard, Jean ;

Zwerger, Wilhelm .

REVIEWS OF MODERN PHYSICS, 2008, 80 (03) :885-964

[10] Measurement of the interaction energy near a feshbach resonance in a 6Li Fermi gas -: art. no. 020402 [J].

Bourdel, T ;

Cubizolles, J ;

Khaykovich, L ;

Magalhaes, KMF ;

Kokkelmans, SJJMF ;

Shlyapnikov, GV ;

Salomon, C .

PHYSICAL REVIEW LETTERS, 2003, 91 (02)

← 1 2 3 4 5 6 →