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We compute vacuum expectation values of products of fermion bilinears for two-dimensional Quantum Chromodynamics at finite flavored fermion densities. We introduce the chemical potential as an external charge distribution within the…

高能物理 - 理论 · 物理学 2009-10-30 Hugo R. Christiansen , Fidel A. Schaposnik

The success of spectroscopy to characterise equilibrium fluids, for example the heat capacity ratio, suggests a parallel approach for active fluids. Here, we start from a hydrodynamic description of chiral active fluids composed of spinning…

软凝聚态物质 · 物理学 2022-07-22 Debarghya Banerjee , Anton Souslov , Vincenzo Vitelli

We apply differential geometry methods to the computation of the anomaly-induced hydrodynamic equilibrium partition function. Implementing the imaginary-time prescription on the Chern-Simons effective action on a stationary background, we…

高能物理 - 理论 · 物理学 2018-11-14 Juan L. Mañes , Eugenio Megias , Manuel Valle , Miguel A. Vazquez-Mozo

The chirality of chiral multifold fermions in reciprocal space is related to the chirality of the crystal lattice structure in real space. In this work, we propose a strategy to detect and identify opposite-chirality multifold fermions in…

材料科学 · 物理学 2021-05-24 Yan Sun , Qiunan Xu , Yang Zhang , Congcong Le , Claudia Felser

We present a calculation of pion electromagnetic and scalar form factors in two-flavor QCD with the non-perturbatively O(a)-improved Wilson fermion. Chiral extrapolation of the corresponding charge radius is discussed based on the chiral…

Fluid of spin-1/2 fermions is represented by a complex scalar field and a four-vector field coupled both to the scalar and the Dirac fields. We present the underlying action and show that the resulting equations of motion are identical to…

高能物理 - 理论 · 物理学 2021-11-16 Ö. F. Dayi , E. Kilinçarslan

We study the transport properties of a relativistic fluid affected by chiral and gauge-gravitational anomalies. The computation is performed in the framework of the fluid/gravity correspondence for a 5 dim holographic model with…

高能物理 - 理论 · 物理学 2015-06-16 Eugenio Megias , Francisco Pena-Benitez

We propose a method to separate enantiomers in microfluidic or nanofluidic channels. It requires flow profiles which break chiral symmetry and have regions with high local shear. Such profiles can be generated in channels confined by walls…

流体动力学 · 物理学 2012-04-19 Sebastian Meinhardt , Jens Smiatek , Ralf Eichhorn , Friederike Schmid

We derive the chiral kinetic equation in 8 dimensional phase space in non-Abelian $SU(N)$ gauge field within the Wigner function formalism. By using the "covariant gradient expansion", we disentangle the Wigner equations in four-vector…

高能物理 - 理论 · 物理学 2021-12-01 Xiao-Li Luo , Jian-Hua Gao

We develop a new closed-form arithmetic and recursive formula for the partition function and a generalization of Andrews' smallest parts (spt) function. Using the inclusion-exclusion principle, we additionally develop a formula for the…

数论 · 数学 2024-01-09 Alfredo Nader

The chiral anomaly underlies a broad number of phenomena, from enhanced electronic transport in topological metals to anomalous currents in the quark-gluon plasma. The discovery of topological states of matter in non-Hermitian systems --…

介观与纳米尺度物理 · 物理学 2022-10-20 Sharareh Sayyad , Julia D. Hannukainen , Adolfo G. Grushin

Based on the chiral symmetry breaking pattern and the corresponding low-energy effective lagrangian, we determine the fermion mass dependence of the partition function and derive sum rules for eigenvalues of the QCD Dirac operator in finite…

高能物理 - 理论 · 物理学 2008-11-26 A. Smilga , J. Verbaarschot

We calculate the second order viscous correction to the kinetic distribution, $\delta f_{(2)}$, and use this result in a hydrodynamic simulation of heavy ion collisions to determine the complete second order correction to the harmonic…

核理论 · 物理学 2014-01-15 Derek Teaney , Li Yan

We derive a systematic procedure of computing the vacuum functional and fermion condensate of the massive Schwinger model via a perturbative expansion in the fermion mass. We compute numerical results for the first nontrivial order.

高能物理 - 唯象学 · 物理学 2009-10-28 C. Adam

The wave function of two fermions, repulsively interacting in the presence of a Fermi sea, is evaluated in detail. We consider large but finite systems in order to obtain an unabiguous picture of the two-particle correlations. As recently…

凝聚态物理 · 物理学 2015-06-25 W. Metzner , C. Castellani

We consider an isotropic compressible non-dissipative fluid with broken parity subject to free surface boundary conditions in two spatial dimensions. The hydrodynamic equations describing the bulk dynamics of the fluid as well as the free…

流体动力学 · 物理学 2020-10-28 Alexander G. Abanov , Tankut Can , Sriram Ganeshan , Gustavo M. Monteiro

We study a second order scheme for spatial fractional differential equations with variable coefficients. Previous results mainly concentrate on equations with diffusion coefficients that are proportional to each other. In this paper, by…

数值分析 · 数学 2017-08-18 Seakweng Vong , Pin Lyu

We compute the parity-odd part of the Weyl anomaly for chiral fermions in a background gravitational field. We start from a manifestly real form of the Lagrangian (that is, not only real up to a total derivative), and we regularize it by…

高能物理 - 理论 · 物理学 2026-02-27 Enrique Alvarez , Luis Alvarez-Gaume , Jesus Anero , Carmelo P Martin

In a relativistic setting, hydrodynamic calculations which include shear viscosity (which is first order in an expansion in gradients of the flow velocity) are unstable and acausal unless they also include terms to second order in…

高能物理 - 唯象学 · 物理学 2009-07-29 Mark Abraao York , Guy D. Moore

We compute the covariant Wigner function for spin-1/2 fermions in an arbitrarily strong magnetic field by exactly solving the Dirac equation at non-zero fermion-number and chiral-charge densities. The Landau energy levels as well as a set…

高能物理 - 唯象学 · 物理学 2018-04-04 Xin-li Sheng , Dirk H. Rischke , David Vasak , Qun Wang