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4 papers · 2 filters
Response functions in multicomponent Luttinger liquids
E. Orignac, R. Citro
We derive an analytic expression for the zero temperature Fourier transform of the density-density correlation function of a multicomponent Luttinger liquid with different velociti…
Quantum critical scaling at a Bose-glass/superfluid transition: theory and experiment on a model quantum magnet
Rong Yu, Corneliu F. Miclea, Franziska Weickert +4
In this paper we investigate the quantum phase transition from magnetic Bose glass to magnetic Bose-Einstein condensation induced by a magnetic field in NiCl2.4SC(NH2)2 (dichloro-t…
Quantum Monte Carlo calculation of entanglement Renyi entropies for generic quantum systems
Stephan Humeniuk, Tommaso Roscilde
We present a general scheme for the calculation of the Renyi entropy of a subsystem in quantum many-body models that can be efficiently simulated via quantum Monte Carlo. When the…
Spin-wave analysis of the transverse-field Ising model on the checkerboard lattice
Louis-Paul Henry, Peter C. W. Holdsworth, Frédéric Mila +1
The ground state properties of the S=1/2 transverse-field Ising model on the checkerboard lattice are studied using linear spin wave theory. We consider the general case of differe…