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The exploration of cold polar molecules in different geometries is a rapidly developing experimental and theoretical pursuit. Recently, the implementation of optical lattices has enabled confinement in stacks of planes, the number of which…

量子气体 · 物理学 2011-09-12 A. G. Volosniev , N. T. Zinner , D. V. Fedorov , A. S. Jensen , B. Wunsch

The recent experimental realization of cold polar molecules in the rotational and vibrational ground state opens the door to the study of a wealth of phenomena involving long-range interactions. By applying an optical lattice to a gas of…

量子气体 · 物理学 2015-03-13 J. R. Armstrong , N. T. Zinner , D. V. Fedorov , A. S. Jensen

We investigate the formation of Cooper pairs, bound dimers and the dimer-dimer elastic scattering of ultra- cold dipolar Fermi molecules confined in a 2D optical lattice bilayer configuration. While the energy and their associated bound…

量子气体 · 物理学 2016-08-04 A. Camacho-Guardian , G. A. Domínguez-Castro , R. Paredes

We study the Fermi polaron problem with dipolar fermions in a bilayer geometry, where a single dipolar particle in one layer interacts with a Fermi sea of dipolar fermions in the other layer. By evaluating the polaron spectrum, we obtain…

量子气体 · 物理学 2024-10-03 A. Tiene , A. Tamargo Bracho , M. M. Parish , J. Levinsen , F. M. Marchetti

We investigate the quantum and thermal phase diagram of fermionic polar molecules loaded in a bilayer trapping potential with perpendicular dipole moment. We use both a BCS theory approach that is most realiable at weak-coupling and a…

量子气体 · 物理学 2012-01-13 N. T. Zinner , B. Wunsch , D. Pekker , D. -W. Wang

We consider a bilayer geometry where a single impurity moves in a two-dimensional plane and is coupled, via dipolar interactions, to a two-dimensional system of fermions residing in the second layer. Dipoles in both layers point in the same…

量子气体 · 物理学 2015-06-16 Natalia Matveeva , Stefano Giorgini

We investigate a system of two polarized molecules in a layered trap. The molecules reside in adjacent layers and interact purely via the dipole-dipole interaction. We determine the properties of the ground state of the system as a function…

原子与分子团簇 · 物理学 2011-06-01 D. V. Fedorov , J. R. Armstrong , N. T. Zinner , A. S. Jensen

We investigate the quantum phase transitions of bosonic polar molecules in a two-dimensional double layer system. We show that an interlayer bound state of dipoles (dimers) can be formed when the dipole strength is above a critical value,…

其他凝聚态物理 · 物理学 2007-05-23 Daw-Wei Wang

We investigate a dilute Fermi gas of polar molecules confined into a bilayer setup with dipole moments polarized perpendicular to the layers. In particular, we consider the extreme case of population imbalance, where we have only one…

量子气体 · 物理学 2014-04-01 Michael Klawunn , Alessio Recati

We predict that pairs of polar molecules can be weakly bound together in an ultracold environment, provided that a dc electric field is present. The field that links the molecules together also strongly influences the basic properties of…

原子物理 · 物理学 2009-11-07 A. V. Avdeenkov , J. L. Bohn

We investigate a two-species Fermi gas in which one species is confined in two parallel layers and interacts with the other species in the three-dimensional space by a tunable short-range interaction. Based on the controlled weak coupling…

量子气体 · 物理学 2014-11-20 Yusuke Nishida

We investigate the behavior of identical dipolar fermions with aligned dipole moments in two-dimensional multilayers at zero temperature. We consider density instabilities that are driven by the attractive part of the dipolar interaction…

量子气体 · 物理学 2017-03-01 M. Callegari , M. M. Parish , F. M. Marchetti

We investigate the effect of Pauli blocking on universal two- and three-body states in the medium. Their corresponding energies are extracted from the poles of two- and three-body in-medium scattering amplitudes. Compared to the vacuum, the…

量子气体 · 物理学 2012-08-16 P. Niemann , H. -W. Hammer

Recent ab initio lattice studies have found that the interactions between alpha particles (4He nuclei) are sensitive to seemingly minor details of the nucleon-nucleon force such as interaction locality. In order to uncover the essential…

核理论 · 物理学 2017-06-14 Alexander Rokash , Evgeny Epelbaum , Hermann Krebs , Dean Lee

We investigate the finite-temperature phase diagram of polar molecules confined in a quasi-two-dimensional geometry by a harmonic potential along the polarization axis. We employ Quantum Monte Carlo simulations to explore the strongly…

量子气体 · 物理学 2026-05-19 Vinicius Zampronio , Matteo Ciardi , Fabio Cinti

In this paper we present results of ab-initio calculations for the beryllium dimer with basis set of Slater-type orbitals (STOs). Nonrelativistic interaction energy of the system is determined using the frozen-core full configuration…

In a bilayer system of fermionic dipoles, a full control over the strength of the attractive interactions between two layers leads to the BCS-BEC crossover. Here, using the BCS mean field theory, we study such a crossover in symmetric…

量子气体 · 物理学 2018-07-25 Azadeh Mazloom , Saeed H. Abedinpour

We introduce a major theoretical generalization of existing techniques for handling the three-body problem that accurately describes the interactions among four fermionic atoms. Application to a two-component Fermi gas accurately determines…

原子物理 · 物理学 2009-11-13 J. P. D'Incao , Seth T. Rittenhouse , N. P. Mehta , Chris H. Greene

We consider a homogeneous mixture of bosons and polarized fermions. We find that long-range and attractive fermion-mediated interactions between bosons have dramatic effects on the properties of the bosons. We construct the phase diagram…

量子气体 · 物理学 2021-02-10 Dong-Chen Zheng , Lin Wen , Chun-Rong Ye , Renyuan Liao

It was shown in PHYSICAL REVIEW B 92, 085409 (2015) that the dynamics of a pair of electrons in graphene can be mapped onto that of a single particle with negative effective mass, leading to bound states of positive energy despite the…

介观与纳米尺度物理 · 物理学 2015-12-10 L. L. Marnham , A. V. Shytov
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