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19932026
most citedThermodynamics of Spin S = 1/2 Antiferromagnetic Uniform and Alternating-Exchange Heisenberg Chains

534 citations · 3.1k across the 80 of their papers we have counts for

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cond-mat.quant-gas2017★ 10 cited

Universality and quantum criticality of the one-dimensional spinor Bose gas

Ovidiu I. Patu, Andreas Klumper, Angela Foerster

We investigate the universal thermodynamics of the two-component one-dimensional Bose gas with contact interactions in the vicinity of the quantum critical point separating the vac…

cond-mat.quant-gas2015★ 24 cited

Thermodynamics, contact and density profiles of the repulsive Gaudin-Yang model

Ovidiu I. Patu, Andreas Klumper

We address the problem of computing the thermodynamic properties of the repulsive one-dimensional two-component Fermi gas with contact interaction, also known as the Gaudin-Yang mo…

cond-mat.quant-gas2015★ 11 cited

Thermodynamics, density profiles and correlation functions of the inhomogeneous one-dimensional spinor Bose gas

Ovidiu I. Patu, Andreas Klumper

We investigate the finite temperature properties of the one-dimensional two-component Bose gas (2CBG) with repulsive contact interaction in a harmonic trap. Making use of a new lat…

cond-mat.quant-gas2014★ 12 cited

Temperature-driven crossover in the Lieb-Liniger model

Andreas Klumper, Ovidiu I. Patu

The large-distance behavior of the density-density correlation function in the Lieb-Liniger model at finite temperature is investigated by means of the recently derived nonlinear i…

cond-mat.quant-gas2012★ 37 cited

Universal probes for antiferromagnetic correlations and entropy in cold fermions on optical lattices

E. V. Gorelik, D. Rost, T. Paiva +3

We determine antiferromagnetic (AF) signatures in the half-filled Hubbard model at strong coupling on a cubic lattice and in lower dimensions. Upon cooling, the transition from the…