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相关论文: $1+1$-Dimensional Large $N$ QCD coupled to Adjoint…

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We study 4-dimensional SU(N) gauge theory with one adjoint Weyl fermion and fundamental matter - either bosonic or fermionic. Symmetries, their 't Hooft anomalies, and the Vafa-Witten-Weingarten theorems strongly constrain the possible bulk…

高能物理 - 理论 · 物理学 2023-11-22 Mohamed M. Anber , Nakarin Lohitsiri , Tin Sulejmanpasic

Conventionally ordered magnets possess bosonic elementary excitations, called magnons. By contrast, no magnetic insulators in more than one dimension are known whose excitations are not bosons but fermions. Theoretically, some quantum spin…

强关联电子 · 物理学 2016-07-06 J. Nasu , J. Knolle , D. L. Kovrizhin , Y. Motome , R. Moessner

We study binding of $N$ identical heavy fermions by a light atom in two dimensions assuming zero-range attractive heavy-light interactions. By using the mean-field theory valid for large $N$ we show that the $N+1$ cluster is bound when the…

量子气体 · 物理学 2024-08-30 J. Givois , A. Tononi , D. S. Petrov

Amongst the bound states produced by the strong interaction, radially excited meson and nucleon states offer an important phenomenological window into the long-range behavior of the coupling constant in Quantum Chromodynamics. We here…

核理论 · 物理学 2016-04-20 Bruno El-Bennich , Eduardo Rojas

A unitary Fermi gas has a surprisingly rich spectrum of large amplitude modes of the pairing field alone, which defies a description within a formalism involving only a reduced set of degrees of freedom, such as quantum hydrodynamics or a…

统计力学 · 物理学 2009-02-25 Aurel Bulgac , Sukjin Yoon

We study two-dimensional gauge theories with fundamental fermions and a general first order gauge-field Lagrangian. For the case of U(1) we show how standard bosonization of the Schwinger model generalizes to give mesons interacting through…

高能物理 - 理论 · 物理学 2009-10-28 Michael R. Douglas , Keke Li , Matthias Staudacher

We present a numerical study of an SU(3) gauged 2D model for adjoint scalar fields, defined by dimensional reduction of pure gauge QCD in (2+1)D at high temperature. In the symmetric phase of its global Z_2 symmetry, two colourless…

高能物理 - 格点 · 物理学 2009-10-31 P. Bialas , A. Morel , B. Petersson , K. Petrov , T. Reisz

Using Majorana Fermions to represent spins we re-examine the Kondo Lattice model for heavy fermions. The simplest decoupling procedure provides a realization of odd frequency superconductivity, with resonant pairing and surfaces of gap…

凝聚态物理 · 物理学 2009-10-22 P. Coleman , E. Miranda , A. Tsvelik

We discuss the possibility that heavy fermion superconductors involve odd-frequency pairing of the kind first considered by Berezinskii. Using a toy model for odd frequency triplet pairing in the Kondo lattice we are able to examine key…

凝聚态物理 · 物理学 2009-10-22 P. Coleman , E. Miranda , A. Tsvelik

We study one-flavor $\mathrm{SU}(2)$ and $\mathrm{SU}(3)$ lattice QCD in ($1+1$) dimensions at zero temperature and finite density using matrix product states and the density matrix renormalization group. We compute physical observables…

高能物理 - 格点 · 物理学 2025-02-03 Tomoya Hayata , Yoshimasa Hidaka , Kentaro Nishimura

We calculate the equation of state of strongly coupled Hamiltonian lattice QCD at finite density by constructing a solution to the equation of motion corresponding to an effective Hamiltonian using Wilson fermions. We find that up to and…

高能物理 - 唯象学 · 物理学 2015-06-25 Yasuo Umino

We study 2-flavor Hamiltonian lattice QCD in (1+1)D with hardcore gluons, at zero and finite density, by means of matrix product states. We introduce a formulation of the theory where gauge redundancy is absent and construct a gauge…

高能物理 - 格点 · 物理学 2023-09-06 Marco Rigobello , Giuseppe Magnifico , Pietro Silvi , Simone Montangero

In a theory with linear confinement, such as QCD, the masses squared m^2 of mesons with high spin S or high radial excitation number n are expected, from semiclassical arguments, to grow linearly with S and n. We show that this behavior can…

高能物理 - 唯象学 · 物理学 2008-11-26 Andreas Karch , Emanuel Katz , Dam T. Son , Mikhail A. Stephanov

We consider an 'electric' $U(N)$ level $k$ QCD$_3$ theory with one adjoint Majorana fermion. Inspired by brane dynamics, we suggest that for $k \ge N/2$ the massive $m<0$ theory, in the vicinity of the supersymmetric point, admits a…

高能物理 - 理论 · 物理学 2022-09-28 Adi Armoni

Far-from-equilibrium dynamics of SU(2) gauge theory with Wilson fermions is studied in 1+1 space-time dimensions using a real-time lattice approach. Lattice improved Hamiltonians are shown to be very efficient in simulating Schwinger pair…

高能物理 - 唯象学 · 物理学 2019-03-05 D. Spitz , J. Berges

In the 1-dimensional matrix model one identifies the tachyon field in the asymptotic region with a nonlocal transform of the density of fermions. But there is a problem in relating the classical tachyon field with the surface profile of the…

高能物理 - 理论 · 物理学 2014-11-18 Sumit R. Das , Samir D. Mathur

Massless overlap fermions in the real representation of two dimensional $SU(N_c)$ gauge theories exhibit a mod($2$) index due to the rigidity of its spectrum when viewed as a function of the background gauge field - lattice gauge fields on…

高能物理 - 格点 · 物理学 2025-09-12 Rajamani Narayanan , Ray Romero

We study the Majorana fermions (MFs) in a spin ladder model. We propose and numerically show that the MFs qubit state can be read out by measuring the fusion excitation in the quenched inhomogeneous spin ladders. Moreover, we construct an…

介观与纳米尺度物理 · 物理学 2013-11-20 Yin-Chen He , Yan Chen

SU(2) gauge theory coupled to massless fermions in the adjoint representation is quantized in light-cone gauge by imposing the equal-time canonical algebra. The theory is defined on a space-time cylinder with "twisted" boundary conditions,…

高能物理 - 理论 · 物理学 2009-11-10 E. Vianello , G. McCartor

Nonlocal entanglement between two quantum dots can be generated through Majorana fermions. The two Majorana fermions at the ends of an one-dimensional topological superconductor form a nonlocal fermion level, coupling to the occupation…

介观与纳米尺度物理 · 物理学 2015-06-03 Zhi Wang , Xiao Hu
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