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相关论文: Chern-Simons Superconductivity at finite magnetic …

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We develop a finite temperature mean field theory in the path integral picture for an extremely dilute system of interacting Fermions in a plane. In the limit of short ranged interactions, the system is shown to undergo a phase transition…

强关联电子 · 物理学 2007-05-23 A. Agarwal , S. G. Rajeev

For (3+1)-dimensional fermions, a net axial charge and external magnetic field can lead to a current parallel to the magnetic field. This is the chiral magnetic effect. We use gauge-gravity duality to study the chiral magnetic effect in…

高能物理 - 理论 · 物理学 2015-05-28 Carlos Hoyos , Tatsuma Nishioka , Andy O'Bannon

The effects of interactions in a 2D electron system in a strong magnetic field of two degenerate Landau levels with opposite spins and at filling factors 1/2 are studied. Using the Chern-Simons gauge transformation, the system is mapped to…

介观与纳米尺度物理 · 物理学 2007-05-23 Matteo Merlo , Nicodemo Magnoli , Maura Sassetti , Bernhard Kramer

For quantum Hall systems, in the limit of large magnetic field (or equivalently small electron band mass $m_b$), the static response of electrons to a spatially varying magnetic field is largely determined by kinetic energy considerations.…

凝聚态物理 · 物理学 2009-10-28 Steven H. Simon , Ady Stern , Bertrand I. Halperin

We explore the magnetic properties of the Fermi-like liquid represented by the D3-D7' system. The system exhibits interesting magnetic properties such as ferromagnetism and an anomalous Hall effect, which are due to the Chern-Simons term in…

高能物理 - 理论 · 物理学 2015-06-04 Niko Jokela , Gilad Lifschytz , Matthew Lippert

The relation between the conductivity tensors of Composite Fermions and electrons is extended to second generation Composite Fermions. It is shown that it crucially depends on the coupling matrix for the Chern-Simons gauge field. The…

介观与纳米尺度物理 · 物理学 2016-08-16 Matteo Merlo , Nicodemo Magnoli , Maura Sassetti , Bernhard Kramer

Heavy fermions have served as prototype examples of strongly-correlated electron systems. The occurrence of unconventional superconductivity in close proximity to the electronic instabilities associated with various degrees of freedom…

超导电性 · 物理学 2016-08-18 Z. F. Weng , M. Smidman , L. Jiao , X. Lu , H. Q. Yuan

Unlike an earlier theory, by avoiding both the electromagnetic gauge field shift and the assumption of the zero average of electromagnetic field fluctuation the fermion Chern-Simons gauge theory is reformulated to obtain mean field…

凝聚态物理 · 物理学 2007-05-23 Tae-Hyoung Gimm , Sung-Ho Suck Salk

The effective action of nonrelativistic fermions in 2+1 dimensions is analyzed at finite temperature and chemical potential in the presence of a uniform magnetic field perpendicular to the plane. The method used is a generalization of the…

凝聚态物理 · 物理学 2009-10-22 S. Sakhi

This paper examines the Landau-Ginzburg theory in the presence of spatial Chern-Simons interactions, which typically emerge in Weyl semimetals due to domain-wall motion. We demonstrate that the incorporation of a purely spatial Chern-Simons…

超导电性 · 物理学 2025-03-11 Yong Tao

An N=1--supersymmetric version of the Cremmer-Scherk-Kalb-Ramond model with non-minimal coupling to matter is built up both in terms of superfields and in a component-field formalism. By adopting a dimensional reduction procedure, the…

高能物理 - 理论 · 物理学 2009-10-31 H. R. Christiansen , M. S. Cunha , J. A. Helayel-Neto , L. R. U. Manssur , A. L. M. A. Nogueira

We investigate the unusual properties of quasirelativistic massless fermions under a magnetic or electric field by means of nonminimal couplings. Within this approach, the spin-orbit coupling (SOC) effects are properly generated in the…

介观与纳米尺度物理 · 物理学 2016-12-06 E. Marcelino , E. S. Santos , R. Rivelino

We consider the electric conductivity in normal metals in presence of a strong magnetic field. It is assumed here that the Fermi surface of a metal has rather complicated form such that different types of quasiclassical electron…

其他凝聚态物理 · 物理学 2018-08-28 A. Ya. Maltsev

In this paper, we have analyzed the spectral and transport properties of a weakly correlated single-level quantum dot hybridized with one normal conducting and another Bardeen-Cooper-Schrieffer (BCS) superconducting lead (N-QD-S system) in…

介观与纳米尺度物理 · 物理学 2023-09-20 Pujita Das , Sachin Verma , Ajay

In this paper we analyse super-Chern-Simons theory in $\mathcal{N} =1$ superspace formalism, in the presence of a boundary. We modify the Lagrangian for the Chern-Simons theory in such a way that it is supersymmetric even in the presence of…

高能物理 - 理论 · 物理学 2015-06-03 Mir Faizal , Douglas J. Smith

We study the thermal confinement/deconfinement and non-thermal quantum phase transitions or rapid cross-overs in QCD and QCD-like theories in external magnetic fields. At large magnetic fields, while the contribution of gauge fluctuations…

高能物理 - 理论 · 物理学 2015-06-17 Mohamed M. Anber , Mithat Unsal

The interplay of magnetism and unconventional superconductivity (d singlet wave or p triplet wave) in strongly correlated electronic system (SCES) is discussed with recent examples found in heavy fermion compounds. A short presentation is…

强关联电子 · 物理学 2009-11-11 J. Flouquet , G. Knebel , D. Braithwaite , D. Aoki , J. P. Brison , F. Hardy , A. Huxley , S. Raymond , B. Salce , I. Sheikin

We investigate the quantum consistency of p-form Maxwell-Chern-Simons electrodynamics in 3p+2 spacetime dimensions (for p odd). These are the dimensions where the Chern--Simons term is cubic, i.e., of the form FFA. For the theory to be…

高能物理 - 理论 · 物理学 2009-11-07 Xavier Bekaert , Andres Gomberoff

We study dynamical symmetry breaking in three-dimensional QED with a Chern-Simons (CS) term, considering the screening effect of $N$ flavor fermions. We find a new phase of the vacuum, in which both the fermion mass and a magnetic field are…

高能物理 - 理论 · 物理学 2009-10-31 Taichi Itoh , Hiroshi Kato

It was demonstrated recently that there is an upper bound of the Chern-Simons coupling of the five-dimensional Einstein-Maxwell theory, beyond which the electrically charged AdS_2 \times S^3 vacuum solution becomes unstable. We generalize…

高能物理 - 理论 · 物理学 2014-11-21 H. Lu , Zhao-Long Wang