Search Results - "Hewson, A. C."
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Higher-Order Fermi-Liquid Corrections for an Anderson Impurity Away from Half Filling
Published in Physical review letters (23-03-2018)Get full text
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Quantum phase transition in a minimal model for the Kondo effect in a Josephson junction
Published in Journal of the Physical Society of Japan (01-09-2004)“…We propose a minimal model for the Josephson current through a quantum dot in a Kondo regime. We start with the model that consists of an Anderson impurity…”
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Kondo effect in asymmetric Josephson couplings through a quantum dot
Published in New journal of physics (09-05-2007)Get full text
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Gap formation and soft phonon mode in the Holstein model
Published in Physical review letters (04-11-2002)“…We investigate electron-phonon coupling in many-electron systems using the dynamical mean-field theory in combination with the numerical renormalization group…”
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Quasiparticle excitations and dynamic susceptibilities in the BCS-BEC crossover
Published in Europhysics letters (01-01-2009)“…We study dynamic ground-state properties in the crossover from weak-(BCS) to strong-coupling (BEC) superfluidity. Our approach is based on the attractive…”
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First- and second-order phase transitions in the Holstein-Hubbard model
Published in Europhysics letters (01-05-2004)“…We investigate metal-insulator transitions in the half-filled Holstein-Hubbard model as a function of the on-site electron-electron interaction U and the…”
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Rhinovirus induces MUC5AC in a human infection model and in vitro via NF-κB and EGFR pathways
Published in The European respiratory journal (01-12-2010)“…Rhinovirus (RV) infections are the major cause of asthma exacerbations, the major cause of morbidity and mortality in asthma. MUC5AC is the major mucin…”
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Convergence of energy scales on the approach to a local quantum critical point
Published in Physical review letters (31-01-2012)“…We find the emergence of strong correlations and universality on the approach to the quantum critical points of a two-impurity Anderson model. The two…”
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Higher-Order Fermi-Liquid Corrections for an Anderson Impurity Away from Half Filling
Published in Physical review letters (23-03-2018)“…We study the higher-order Fermi-liquid relations of Kondo systems for arbitrary impurity-electron fillings, extending the many-body quantum theoretical…”
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The Strong Coupling Fixed-Point Revisited
Published in Journal of the Physical Society of Japan (01-01-2005)“…In recent work, we have shown that the Fermi liquid aspects of the strong coupling fixed point of the s-d and Anderson models can brought out more clearly by…”
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Determination of the phase shifts for interacting electrons connected to reservoirs
Published in Journal of the Physical Society of Japan (01-09-2005)“…We describe a formulation to deduce the phase shifts, which determine the ground-state properties of interacting quantum-dot systems with the inversion…”
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NRG Approach to the Transport through a Finite Hubbard Chain Connected to Reservoirs
Published in Journal of the Physical Society of Japan (01-03-2005)“…We study the low-energy properties of a Hubbard chain of finite size NC connected to two noninteracting leads using the numerical renormalization group (NRG)…”
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Renormalized parameters for impurity models
Published in The European physical journal. B, Condensed matter physics (01-07-2004)Get full text
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Renormalized quasiparticles in antiferromagnetic states of the Hubbard model
Published in The European physical journal. B, Condensed matter physics (01-06-2007)“…We analyze the properties of the quasiparticle excitations of metallic antiferromagnetic states in a strongly correlated electron system. The study is based on…”
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Equilibrium and non-equilibrium dynamics of quasiparticles for locally correlated systems in a magnetic field
Published in Journal of magnetism and magnetic materials (01-03-2007)“…We present renormalised perturbation theory calculations for the description of the dynamics of quasiparticles in the Anderson impurity model in magnetic…”
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A differential role for ceramide kinase in antigen/FcεRI-mediated mast cell activation and function
Published in Clinical and experimental allergy (01-03-2011)“…Cite this as: C. A. Hewson, J. R. Watson, W. L. Liu and M. D. Fidock, Clinical & Experimental Allergy, 2011 (41) 389-398. Background Mast cells are specialized…”
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Renormalized perturbation expansions and Fermi liquid theory
Published in Physical review letters (21-06-1993)Get full text
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Perturbational scaling theory of the induced magnetization in the impurity Anderson model
Published in Physical review. B, Condensed matter and materials physics (22-04-2013)“…We demonstrate the effectiveness of a generalized renormalized perturbational approach to calculate the induced magnetization for the single impurity Anderson…”
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Polaronic quasiparticles in a strongly correlated electron band
Published in Physical review letters (16-12-2005)Get full text
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