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相关论文: Artificial electric field in Fermi Liquids

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We study the magnetic Bloch oscillations performed by a quantum particle moving in a two-dimensional lattice in the presence of a strong (synthetic) magnetic field and a uniform force. An elementary derivation of the Berry curvature effect…

量子气体 · 物理学 2013-07-25 Marco Cominotti , Iacopo Carusotto

We analyze the deformations of the Fermi surface induced by electron-electron interactions in anisotropic two dimensional systems. We use perturbation theory to treat, on the same footing, the regular and singular regions of the Fermi…

强关联电子 · 物理学 2007-05-23 Rafael Roldan , M. Pilar Lopez-Sancho , Francisco Guinea , Shan-Wen Tsai

Response theories in condensed matter typically describe the response of an electron fluid to external electromagnetic fields, while perturbations on neutral particles are often designed to mimic such fields. Here, we study the response of…

其他凝聚态物理 · 物理学 2024-11-25 Kai Chen , Swadeepan Nanda , Pavan Hosur

Starting from the density-matrix equation of motion, we derive a semiclassical kinetic equation for a general two-band electronic Hamiltonian, systematically including quantum-mechanical corrections up to second order in space-time…

介观与纳米尺度物理 · 物理学 2013-11-27 Clement H. Wong , Yaroslav Tserkovnyak

The Berry curvature provides a powerful tool to unify several branches of science through their geometrical aspect: topology, energy bands, spin and vector fields. While quantum defects -- phase vortices and skyrmions -- have been in the…

We develop a field theory formalism for the disordered interacting electron liquid in the dynamical Keldysh formulation. This formalism is an alternative to the previously used replica technique. In addition it naturally allows for the…

无序系统与神经网络 · 物理学 2009-10-31 Alex Kamenev , Anton Andreev

We use Fermi liquid theory to study the mechanical impedance of 3He-4He mixtures at low temperatures. The theory is applied to the case of vibrating wires, immersed in the liquid. We present numerical results based on a direct solution of…

强关联电子 · 物理学 2015-03-17 Timo H. Virtanen , Erkki Thuneberg

Motivated by the fermionic Berry's phase in momentum space, we study a local Abelian phase in momentum space coupled to electromagnetism, for complex scalars in the phase-space worldline formalism. The interaction of both Abelian fields is…

广义相对论与量子宇宙学 · 物理学 2023-10-10 Patrick Copinger , Pablo Morales

We argue that the Fermi-Hubbard Hamiltonian describing the physics of ultracold atoms on optical lattices in the presence of artificial non-Abelian gauge fields, is exactly equivalent to the gauge theory Hamiltonian describing Dirac…

量子气体 · 物理学 2011-03-07 O. Boada , A. Celi , J. I. Latorre , M. Lewenstein

A kinetic theory can be modified to incorporate triangle anomalies and the chiral magnetic effect by taking into account the Berry curvature flux through the Fermi surface. We show how such a kinetic theory can be derived from underlying…

高能物理 - 理论 · 物理学 2013-05-01 Dam Thanh Son , Naoki Yamamoto

The interaction between strong correlation and Berry curvature is an open territory of in the field of quantum materials. Here we report large anomalous Hall conductivity in a Kondo lattice ferromagnet USbTe which is dominated by intrinsic…

Introducing both Berry curvature and chiral anomaly into Landau's Fermi-liquid theory, we construct a topological Fermi-liquid theory, applicable to interacting Weyl metals in the absence of time reversal symmetry. Following the Landau's…

强关联电子 · 物理学 2017-05-12 Yong-Soo Jho , Jae-Ho Han , Ki-Seok Kim

The Berry phase acquired by an electromagnetic field undergoing an adiabatic and cyclic evolution in phase space is a purely quantum-mechanical effect of the field. However, this phase is usually accompanied by a dynamical contribution and…

量子物理 · 物理学 2012-03-05 Shi-Biao Zheng

The electron-electron interactions affect the low-energy excitations of an electronic system and induce deformations of the Fermi surface. These effects are especially important in anisotropic materials with strong correlations, such as…

强关联电子 · 物理学 2007-10-30 R. Roldan , M. P. Lopez-Sancho , F. Guinea , S. -W. Tsai

We present a study of electric, thermal and thermoelectric response in noncollinear antiferromagnet Mn$_{3}$Sn, which hosts a large Anomalous Hall Effect (AHE). Berry curvature generates off-diagonal thermal(Righi-Leduc) and…

介观与纳米尺度物理 · 物理学 2017-08-09 Xiaokang Li , Liangcai Xu , Linchao Ding , Jinhua Wang , Mingsong Shen , Xiufang Lu , Zengwei Zhu , Kamran Behnia

The Berry connection and curvature are key components of electronic structure calculations for atoms and molecules in magnetic fields. They ensure the correct translational behavior of the effective nuclear Hamiltonian and the correct…

化学物理 · 物理学 2022-10-19 Laurens D. M. Peters , Tanner Culpitt , Erik I. Tellgren , Trygve Helgaker

The rapid experimental progress of ultra-cold dipolar fermions opens up a whole new opportunity to investigate novel many-body physics of fermions. In this article, we review theoretical studies of the Fermi liquid theory and Cooper pairing…

量子气体 · 物理学 2015-01-06 Yi Li , Congjun Wu

The fermion sector of the pseudo-quantum electrodynamics is integrated functionally to generate a non-linear electrodynamics, that it is called Euler-Heisenberg pseudo-electrodynamics. A non-local Chern-Simons topological term is added to…

高能物理 - 理论 · 物理学 2026-04-03 M. J. Neves

Non-Fermi liquids arise when metals are subject to singular interactions mediated by soft collective modes. In the absence of well-defined quasiparticle, universal physics of non-Fermi liquids is captured by interacting field theories which…

强关联电子 · 物理学 2018-03-23 Sung-Sik Lee

We show that in a layered metal, the angle dependent, finite frequency, interlayer magnetoresistance is altered due to the presence of a non-zero Berry curvature at the Fermi surface. At zero frequency, we find a conservation law which…

介观与纳米尺度物理 · 物理学 2013-10-02 Anthony R. Wright , Ross H. McKenzie