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200 篇论文

We systematically investigate the ground state and elementary excitations of a Bose-Einstein Condensate with a synthetic vector potential, which is induced by the many-body effects and atom-light coupling. For a sufficiently strong…

量子气体 · 物理学 2015-07-08 Jun-hui Zheng , Bo Xiong , G. Juzeliunas , Daw-Wei Wang

In a type II superconductor the gap variation in the core of a vortex line induces a local charge modulation. Accounting for metallic screening, we determine the line charge of individual vortices and calculate the electric field…

凝聚态物理 · 物理学 2009-10-28 Gianni Blatter , Mikhail Feigel'man , Vadim Geshkenbein , Anatoli Larkin , Anne van Otterlo

We investigate the influence of rotation on the dynamical chiral symmetry breaking in strongly interacting matter. We develop a self-consistent Bogoliubov-de Gennes-like theoretical framework to study the inhomogeneous chiral condensate and…

核理论 · 物理学 2019-12-05 Lingxiao Wang , Yin Jiang , Lianyi He , Pengfei Zhuang

A superconducting rod with a magnetic moment on top develops vortices obtained here through 3D calculations of the Ginzburg-Landau theory. The inhomogeneity of the applied field brings new properties to the vortex patterns that vary…

超导电性 · 物理学 2015-05-14 Antonio R. de C. Romaguera , Mauro M. Doria , F. M. Peeters

Grand unified theories can admit cosmic strings with fermion zero modes. Such zero modes result in the string being current-carrying and the formation of stable remnants, vortons. However, the string zero modes do not automaticall survive…

高能物理 - 唯象学 · 物理学 2011-03-02 A. C. Davis

Chirality represents a kind of symmetry breaking characterized by the noncoincidence of an object with its mirror image and has been attracting intense attention in a broad range of scientific areas. The recent realization of spin-orbit…

量子气体 · 物理学 2018-07-27 Wei Han , Xiao-Fei Zhang , Deng-Shan Wang , Hai-Feng Jiang , Wei Zhang , Shou-Gang Zhang

Superconducting cosmic strings can exhibit longitudinal, pinching instabilities in some regions of the parameter space. We make predictions about the onset of this instability using the thin string approximation (TSA) and develop an…

高能物理 - 唯象学 · 物理学 2023-03-29 R. A. Battye , S. J. Cotterill

In this paper we calculate the magnetic and electric self-forces, induced by the conical structure of a cosmic string space-time, on a long straight wire which presents either a constant current or a linear charge density. We also show how…

广义相对论与量子宇宙学 · 物理学 2016-08-31 E. R. Bezerra de Mello , V. B. Bezerra , C. Furtado , F. Moraes

In type-1.5 superconductors, vortices emerge in clusters, which grow in size with increasing magnetic field. These novel vortex clusters and their field dependence are directly visualized by scanning SQUID microscopy at very low vortex…

The experimental investigation of spontaneously created vortices is of utmost importance for the understanding of quantum phase transitions towards a superfluid phase, especially for two dimensional systems that are expected to be governed…

The equations of viscous evolution of 3D arbitrarily shaped vortices in an isotropic type II superconductor and necessary boundary conditions are formulated in the frame of London approximation. The theory is applied to analyse…

超导电性 · 物理学 2007-05-23 Yu. E. Kuzovlev

We begin by outlining the ancient puzzle of off shell currents and infinite size particles in a string theory of hadrons. We then consider the problem from the modern AdS/CFT perspective. We argue that although hadrons should be thought of…

高能物理 - 理论 · 物理学 2007-05-23 Joseph Polchinski , Leonard Susskind

The unique, conical spacetime created by cosmic strings brings about distinctive gravitational lensing phenomena. The variety of these distinctive phenomena is increased when the strings have non-trivial mutual interactions. In particular,…

高能物理 - 理论 · 物理学 2013-05-29 Benjamin Shlaer , Mark Wyman

A solenoid oscillating in vacuum will pair produce charged particles due to the Aharonov-Bohm (AB) interaction. We calculate the radiation pattern and power emitted for charged scalar particles. We extend the solenoid analysis to cosmic…

高能物理 - 理论 · 物理学 2010-11-01 Katherine Jones-Smith , Harsh Mathur , Tanmay Vachaspati

We carry out numerical simulations to investigate spontaneous vortex formation during a temperature quench of a superconductor film from the normal to the superconducting phase in the absence of an external magnetic field. Our results agree…

超导电性 · 物理学 2008-11-26 M. Donaire , T. W. B. Kibble , A. Rajantie

Vortices are topological defects associated with superfluids and superconductors, which, when mobile, dissipate energy destroying the dissipation-less nature of the superfluid. The nature of this "quantum dissipation" is rooted in the…

高能物理 - 理论 · 物理学 2023-05-10 Wei-Can Yang , Chuan-Yin Xia , Hua-Bi Zeng , Makoto Tsubota , Jan Zaanen

Equilibrium vortex configuration in conventional type II superconductors containing columnar defects is theoretically investigated. Near the upper critical field a single defect causes a strong local deformation of the vortex lattice. This…

超导电性 · 物理学 2009-10-31 Gregory M. Braverman , Sergey A. Gredeskul , Yshai Avishai

A fragmenting relativistic string is widely used for modelling particle production via quark-gluon strings formed in hadron inelastic interactions of high energies. In this note we focus on motion and fragmentation of relativistic string…

高能物理 - 唯象学 · 物理学 2014-11-20 R. S. Kolevatov

There are several ways to turn a superconductor into a normal conductor: increase the temperature, apply a high magnetic field, or run a large current. High-T$_c$ cuprate superconductors are unusual in the sense that experiments suggest…

超导电性 · 物理学 2016-07-12 M. Naamneh , J. C. Campuzano , A. Kanigel

The flux of high energy cosmic rays coming from the decay of vortons is estimated. If the abundance of loops corresponding to a superconductivity scale coincident with that of the string formation is corrected to be compatible with the…

天体物理学 · 物理学 2011-05-23 Luis Masperi , Guillermo Silva