163 citations · 3.3k across the 109 of their papers we have counts for
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Quantum emulsion: a glassy phase of bosonic mixtures in optical lattices
Tommaso Roscilde, J. Ignacio Cirac
We numerically investigate mixtures of two interacting bosonic species with unequal parameters in one-dimensional optical lattices. In large parameter regions full phase segregatio…
The disordered-free-moment phase: a low-field disordered state in spin-gap antiferromagnets with site dilution
Rong Yu, Tommaso Roscilde, Stephan Haas
Site dilution of spin-gapped antiferromagnets leads to localized free moments, which can order antiferromagnetically in two and higher dimensions. Here we show how a weak magnetic…
Quantum phase transition in spin systems studied through entanglement estimators
Andrea Fubini, Stephan Haas, Tommaso Roscilde +2
Entanglement represents a pure quantum effect involving two or more particles. Spin systems are good candidates for studying this effect and its relation with other collective phen…
Mott glass in site-diluted S=1 antiferromagnets with single-ion anisotropy
Tommaso Roscilde, Stephan Haas
The interplay between site dilution and quantum fluctuations in S=1 Heisenberg antiferromagnets on the square lattice is investigated using quantum Monte Carlo simulations. Quantum…
Field-induced quantum disordered phases in S=1/2 weakly-coupled dimer systems with site dilution
Tommaso Roscilde
In the present paper we discuss the rich phase diagram of S=1/2 weakly coupled dimer systems with site dilution as a function of an applied uniform magnetic field. Performing quant…
Scaling Behavior of Entanglement in Two- and Three-Dimensional Free Fermions
Weifei Li, Letian Ding, Rong Yu +2
Exactly solving a spinless fermionic system in two and three dimensions, we investigate the scaling behavior of the block entropy in critical and non-critical phases. The scaling o…