2k citations · 18.4k across the 171 of their papers we have counts for
9 papers · 1 filter
Completeness of classical spin models and universal quantum computation
Gemma De las Cuevas, Wolfgang Dür, Maarten Van den Nest +1
We study mappings between distinct classical spin systems that leave the partition function invariant. As recently shown in [Phys. Rev. Lett. 100, 110501 (2008)], the partition fun…
Unifying all classical spin models in a Lattice Gauge Theory
G. De las Cuevas, W. Dür, H. J. Briegel +1
We show that the partition function of all classical spin models, including all discrete Standard Statistical Models and all abelian discrete Lattice Gauge Theories (LGTs), can be…
Classical spin systems and the quantum stabilizer formalism: general mappings and applications
R. Hübener, M. Van den Nest, W. Dür +1
We present general mappings between classical spin systems and quantum physics. More precisely, we show how to express partition functions and correlation functions of arbitrary cl…
Valence Bond States: Link models
E. Rico, R. Hübener, S. Montangero +4
An isotropic anti-ferromagnetic quantum state on a square lattice is characterized by symmetry arguments only. By construction, this quantum state is the result of an underlying va…
Dynamic entanglement in oscillating molecules and potential biological implications
Jianming Cai, Sandu Popescu, Hans J. Briegel
We demonstrate that entanglement can persistently recur in an oscillating two-spin molecule that is coupled to a hot and noisy environment, in which no static entanglement can surv…
Entanglement and intra-molecular cooling in biological systems? - A quantum thermodynamic perspective
Hans J. Briegel, Sandu Popescu
We discuss the possibility of existence of entanglement in biological systems. Our arguments centre on the fact that biological systems are thermodynamic open driven systems far fr…
Spin squeezing and entanglement
Geza Toth, Christian Knapp, Otfried Gühne +1
What is the relation between spin squeezing and entanglement? To clarify this, we derive the full set of generalized spin squeezing inequalities for the detection of entanglement.…
Quantum algorithms for spin models and simulable gate sets for quantum computation
M. Van den Nest, W. Dür, R. Raussendorf +1
We present elementary mappings between classical lattice models and quantum circuits. These mappings provide a general framework to obtain efficiently simulable quantum gate sets f…
Epsilon-measures of entanglement
Caterina Mora, Marco Piani, Hans Briegel
We associate to every entanglement measure a family of measures which depend on a precision parameter, and which we call epsilon-measures of entanglement. Their definition aims at…