Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Il Nuovo cimento della Società italiana di fisica. B/Il Nuovo cimento B

Couplings between internal and translational degrees of freedom in isotropic superfluid fermi systems

M. Baldo, G. Giansiracusa, UMBERTO LOMBARDO, R. Pucci

Published Aug 1, 1980• 2 citations
Publisher
DOI
10.1007/bf02874014

Related papers

Topological Excitations in Superfluids with Internal Degrees of Freedom

Yuki Kawaguchi, Masahito Ueda

Series in condensed matter physics•Nov 2, 2010•0 citations

Theory of the rotating polaron: Spectrum and self-localization

Enderalp Yakaboylu, Bikashkali Midya, Andreas Deuchert +2 more

We study a quantum impurity possessing both translational and internal rotational degrees of freedom interacting with a bosonic bath. Such a system corresponds to a ``rotating polaron,'' which can be used to model, e.g., a rotating molecule immersed in an ultracold Bose gas or superfluid helium. We derive the Hamiltonian of the rotating polaron and study its spectrum in the weak- and strong-coupling regimes using a combination of variational, diagrammatic, and mean-field approaches. We reveal how the coupling between linear and angular momenta affects stable quasiparticle states, and demonstrate that internal rotation leads to an enhanced self-localization in the translational degrees of freedom.

arXiv:1809.01204•Physical review. B./Physical review. B•Dec 12, 2018•19 citations

Stability of isotropic Fermi superfluids

Jerzy Czerwonko

Physica A Statistical Mechanics and its Applications•Oct 1, 1982•2 citations

Theory of superfluid fermi systems

Rashmiraj Balkrishna Prabhu

•Jan 1, 1970•0 citations

Atomic Interaction via Diffractive Light Coupling

T. Ackemann, Adrian Costa Boquete, Ivor Krešić +6 more

Transversely pumped cavities have been a workhorse for mediating global coupling between atoms and recent progress has been made towards multi-mode situations with more localized coupling [1]. However, in transversely pumped cavities, symmetries will be always constrained by the pump and cavity axes whereas in a system with a single distinguished axis the translational and rotational symmetries in the 2D transverse plane can be broken spontaneously. Recent work demonstrated that in a feedback system (Fig. 1a) using coupling to external degrees of freedom or internal spin degrees of freedom [2-4]. In this contribution, we are giving a generalized treatment of this coupling and show how the different light degrees of freedom on the Poincaré sphere can be utilized to address different atomic moments. We also investigate the transfer of this concept to longitudinally pumped cavities.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 1, 2019•0 citations

The description of superfluid fermi systems with anisotropic features

Abraham Klein

Il Nuovo Cimento•Mar 1, 1962•4 citations
We study a quantum impurity possessing both translational and internal rotational degrees of freedom interacting with a bosonic bath. Such a system corresponds to a ``rotating polaron,'' which can be used to model, e.g., a rotating molecule immersed in an ultracold Bose gas or superfluid helium. We derive the Hamiltonian of the rotating polaron and study its spectrum in the weak- and strong-coupling regimes using a combination of variational, diagrammatic, and mean-field approaches. We reveal how the coupling between linear and angular momenta affects stable quasiparticle states, and demonstrate that internal rotation leads to an enhanced self-localization in the translational degrees of freedom.
Transversely pumped cavities have been a workhorse for mediating global coupling between atoms and recent progress has been made towards multi-mode situations with more localized coupling [1]. However, in transversely pumped cavities, symmetries will be always constrained by the pump and cavity axes whereas in a system with a single distinguished axis the translational and rotational symmetries in the 2D transverse plane can be broken spontaneously. Recent work demonstrated that in a feedback system (Fig. 1a) using coupling to external degrees of freedom or internal spin degrees of freedom [2-4]. In this contribution, we are giving a generalized treatment of this coupling and show how the different light degrees of freedom on the Poincaré sphere can be utilized to address different atomic moments. We also investigate the transfer of this concept to longitudinally pumped cavities.