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We investigate the coherent dynamics of a Bose-Einstein condensate in a double well, subject to a density dependent gauge potential. Further, we derive the nonlinear Josephson equations that allow us to understand the many-body system in…

Quantum Gases · Physics 2013-07-01 Matthew Edmonds , Manuel Valiente , Patrik Ohberg

We study the Josephson-like tunneling in two-component Bose-Einstein condensates coupled with microwave field in respond to various attractive and repulsive atomic interaction under the various aspect ratio of trapping potential and the…

Other Condensed Matter · Physics 2009-11-13 Bo Xiong , X. X. Liu

The dc Josephson effect refers to the dissipationless electrical current -- the supercurrent -- that can be sustained across a weak link connecting two bulk superconductors. This effect is a probe of the fundamental nature of the…

Superconductivity · Physics 2007-05-23 Michael Hermele , Gil Refael , Matthew P. A. Fisher , Paul M. Goldbart

We employ a semiclassical picture to study dynamics in a bosonic Josephson junction with various initial conditions. Phase-diffusion of coherent preparations in the Josephson regime is shown to depend on the initial relative phase between…

Establishment of phase-coherence and a non-dissipative (super)current between two weakly coupled superconductors, known as the Josephson effect, plays a foundational role in basic physics and applications to metrology, precision sensing,…

We study a mixture of one-dimensional bosons and spinless fermions at incommensurate filling using phenomenological bosonization and Green's functions techniques. We derive the relation between the parameters of the microscopic Hamiltonian…

Quantum Gases · Physics 2010-05-31 E. Orignac , M. Tsuchiizu , Y. Suzumura

We investigate the static and dynamic properties of bosonic lattice systems in which condensed and Mott insulating phases co-exist due to the presence of a spatially-varying potential. We formulate a description of these inhomogeneous…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Smitha Vishveshwara , Courtney Lannert

We consider a two-dimensional monolayer MoS2-based Josephson junction which is composed by an intermediate semiconductor flake and the semi-infinite topological and non-topological superconductor leads and study its quantum transport…

Superconductivity · Physics 2025-07-01 Hamidreza Simchi

We consider a system of partial differential equations describing mass transport in a multicomponent isothermal compressible fluid. The diffusion fluxes obey the Fick-Onsager or Maxwell-Stefan closure approach. Mechanical forces result into…

Analysis of PDEs · Mathematics 2020-01-27 Dieter Bothe , Pierre-Etienne Druet

Thin layers of topological insulator materials are quasi-two-dimensional systems featuring a complex interplay between quantum confinement and topological band structure. To understand the role of the spatial distribution of carriers in…

Materials Science · Physics 2020-03-02 Martin P. Stehno , Prosper Ngabonziza , Hiroaki Myoren , Alexander Brinkman

The amplitudes for boson-boson and fermion-boson interactions are calculated in the second order of perturbation theory in the Lobachevsky space. An essential ingredient of the used model is the Weinberg's $2(2j+1)$ component formalism for…

High Energy Physics - Theory · Physics 2009-10-28 Valeri V. Dvoeglazov

In a transparent three-terminal Josephson junction, modeling nonequilibrium transport is numerically challenging, owing to the interplay between multiple Andreev reflection (MAR) thresholds and multipair resonances in the pair current. An…

Mesoscale and Nanoscale Physics · Physics 2016-08-06 Régis Mélin , Denis Feinberg , Benoît Douçot

Nonequilibrium effects created by stationary current injection in layered d-wave superconductors forming a stack of intrinsic Josephson junctions are studied. Starting from a nonequilibrium Green function theory we derive microscopic…

Superconductivity · Physics 2009-11-10 J. Keller , D. A. Ryndyk

The DC Josephson effect is the flow of supercurrent across a weak link between two superconductors with a different value of their order parameter, the phase. We generalize this notion to any kind of spontaneous continuous symmetry…

Other Condensed Matter · Physics 2020-08-04 Aron J. Beekman

The strongly interacting matter created in relativistic heavy-ion collisions possesses several conserved quantum numbers, such as baryon number, strangeness, and electric charge. The diffusion process of these charges can be characterized…

High Energy Physics - Phenomenology · Physics 2024-11-06 Sourav Dey , Amaresh Jaiswal , Hiranmaya Mishra

For a Bose condensate in a double-well potential or with two Josephson-coupled internal states, the condensate wavefunction is a superposition. Here we consider coupling two such Bose condensates, and suggest the existence of a joint…

Quantum Physics · Physics 2009-10-31 Yu Shi

A simple and general derivation of Josephson formulae for the tunneling currents is presented on the basis of Sewell's general formulation of superconductivity in use of off-diagonal long range order (ODLRO).

Mathematical Physics · Physics 2007-05-23 Izumi Ojima

We consider arrays of Josephson junctions as well as single junctions in both the classical and quantum-mechanical regimes, and examine the generalized (frequency-dependent) resistance, which describes the dynamic responses of such…

Condensed Matter · Physics 2009-10-31 Mahn-Soo Choi , M. Y. Choi , Sung-Ik Lee

To reveal the influence of the exchange interaction on the Josephson effect, the d.c. Josephson current in unconventional-superconductor / ferromagnet / unconventional-superconductor junctions is studied. When the two superconductors have…

Superconductivity · Physics 2007-05-23 Y. Tanaka , S. Kashiwaya

A model is introduced for two reduced BCS systems which are coupled through the transfer of Cooper pairs between the systems. The model may thus be used in the analysis of the Josephson effect arising from pair tunneling between two…

Superconductivity · Physics 2009-11-07 J. Links , H. -Q. Zhou , R. H. McKenzie , M. D. Gould
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