Search Results - "CHANDRASEKHARAN, Shailesh"
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Fermion masses through four-fermion condensates
Published in The journal of high energy physics (01-10-2016)“…A bstract Fermion masses can be generated through four-fermion condensates when symmetries prevent fermion bilinear condensates from forming. This less…”
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Emergence of Gauss' law in a Z2 lattice gauge theory in 1 + 1 dimensions
Published in Physics letters. B (01-07-2020)“…We explore a Z2 Hamiltonian lattice gauge theory in one spatial dimension with a coupling h, without imposing any Gauss' law constraint. We show that in our…”
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Qubit Regularization and Qubit Embedding Algebras
Published in Symmetry (Basel) (01-02-2022)“…Qubit regularization is a procedure to regularize the infinite dimensional local Hilbert space of bosonic fields to a finite dimensional one, which is a…”
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Generating a mass gap using Feynman diagrams in an asymptotically free theory
Published in EPJ Web of conferences (01-01-2018)“…Using the example of a two dimensional four-fermion lattice field theory, we show that Feynman diagrams can generate a mass gap in a theory with massless…”
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Fermion bag approach to the sign problem in strongly coupled lattice QED with Wilson fermions
Published in The journal of high energy physics (01-01-2011)“…We explore the sign problem in strongly coupled lattice QED with one flavor of Wilson fermions in four dimensions using the fermion bag formulation. We…”
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Anomaly and a QCD-like phase diagram with massive bosonic baryons
Published in The journal of high energy physics (01-12-2010)“…We study a strongly coupled Z 2 lattice gauge theory with two flavors of quarks, invariant under an exact SU(2) × SU(2) × U A (1) × U B (1) symmetry which is…”
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Meron-Cluster Solution of Fermion Sign Problems
Published in Physical review letters (18-10-1999)Get full text
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Quantum phase transitions of hard-core bosons in background potentials
Published in Physical review letters (15-09-2006)“…We study the zero temperature phase diagram of hard-core bosons in two dimensions subjected to three types of background potentials: staggered, uniform, and…”
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Quantum critical behavior in three dimensional lattice Gross-Neveu models
Published in Physical review. D, Particles, fields, gravitation, and cosmology (31-07-2013)“…We study quantum critical behavior in three dimensional lattice Gross-Neveu models containing two four-component massless Dirac fermions. We focus on two…”
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Conformal Dimensions via Large Charge Expansion
Published in Physical review letters (09-02-2018)“…We construct an efficient Monte Carlo algorithm that overcomes the severe signal-to-noise ratio problems and helps us to accurately compute the conformal…”
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Massive fermions without fermion bilinear condensates
Published in Physical Review D (Particles, Fields, Gravitation and Cosmology) (30-03-2015)“…We study a lattice field theory model containing two flavors of massless staggered fermions with an onsite four-fermion interaction. The model contains an…”
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Fermion bags, duality, and the three dimensional massless lattice thirring model
Published in Physical review letters (05-04-2012)“…The recently proposed fermion-bag approach is a powerful technique to solve some four-fermion lattice field theories. Because of the existence of a duality…”
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Conformal Dimensions in the Large Charge Sectors at the O(4) Wilson-Fisher Fixed Point
Published in Physical review letters (01-08-2019)“…We study the O(4) Wilson-Fisher fixed point in 2+1 dimensions in fixed large-charge sectors identified by products of two spin-j representations (j_{L},j_{R})…”
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Qubit Regularization of Asymptotic Freedom
Published in Physical review letters (30-04-2021)“…We provide strong evidence that the asymptotically free (1+1)-dimensional nonlinear O(3) sigma model can be regularized using a quantum lattice Hamiltonian,…”
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15
Qubit Regularization and Qubit Embedding Algebras
Published in Symmetry (Basel) (01-02-2022)“…Qubit regularization is a procedure to regularize the infinite dimensional local Hilbert space of bosonic fields to a finite dimensional one, which is a…”
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Journal Article -
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Emergence of Gauss' law in a Z2 lattice gauge theory in 1 + 1 dimensions
Published in Physics letters. B (01-07-2020)“…Not provided…”
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Asymptotic Freedom at the Berezinskii-Kosterlitz-Thouless Transition without Fine-Tuning Using a Qubit Regularization
Published in Physical review letters (26-01-2024)“…We propose a two-dimensional hard-core loop-gas model as a way to regularize the asymptotically free massive continuum quantum field theory that emerges at the…”
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Fermion bag approach to fermion sign problems: New opportunities in lattice fermion field theories
Published in The European physical journal. A, Hadrons and nuclei (01-07-2013)“…The fermion bag approach is a new method to tackle fermion sign problems in lattice field theories. Using this approach it is possible to solve a class of sign…”
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Anomalous Chiral Symmetry Breaking above the QCD Phase Transition
Published in Physical review letters (22-03-1999)Get full text
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Erratum: Quantum Criticality of Antiferromagnetism and Superconductivity with Relativity [Phys. Rev. Lett. 128 , 117202 (2022)]
Published in Physical review letters (29-09-2023)“…This corrects the article DOI: 10.1103/PhysRevLett.128.117202…”
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