scholarly journals Quantum Monte Carlo calculation of entanglement Rényi entropies for generic quantum systems

2012 ◽  
Vol 86 (23) ◽  
Author(s):  
Stephan Humeniuk ◽  
Tommaso Roscilde
Keyword(s):  
Monte Carlo ◽  
Quantum Monte Carlo ◽  
Monte Carlo Calculation ◽  
Quantum Systems ◽  
Rényi Entropies ◽  
Renyi Entropies

scholarly journals Quantum Monte Carlo detection of SU(2) symmetry breaking in the participation entropies of line subsystems

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
David J. Luitz ◽  
Nicolas Laflorencie
Keyword(s):  
Monte Carlo ◽  
Quantum Monte Carlo ◽  
Three Dimensional ◽  
One Dimensional ◽  
Cubic Lattices ◽  
Rényi Entropies ◽  
Logarithmic Scaling ◽  
Quantum Monte Carlo Simulations ◽  
Renyi Entropies ◽  
Good Agreement

Using quantum Monte Carlo simulations, we compute the participation (Shannon-Rényi) entropies for groundstate wave functions of Heisenberg antiferromagnets for one-dimensional (line) subsystems of length LL embedded in two-dimensional (L\times LL×L) square lattices. We also study the line entropy at finite temperature, i.e. of the diagonal elements of the density matrix, for three-dimensional (L\times L\times LL×L×L) cubic lattices. The breaking of SU(2) symmetry is clearly captured by a universal logarithmic scaling term l_q\ln LlqlnL in the Rényi entropies, in good agreement with the recent field-theory results of Misguish, Pasquier and Oshikawa . We also study the dependence of the log prefactor l_qlq on the Rényi index qq for which a transition is detected at q_c\simeq 1qc≃1.

Experimental, DFT and quantum Monte Carlo studies of a series of peptide-based metal–organic frameworks: synthesis, structures and properties

2014 ◽  
Vol 1 (7) ◽  
pp. 526-533 ◽  
Author(s):  
Gui-lin Zhuang ◽  
Li Tan ◽  
Wu-lin Chen ◽  
Jun Zheng ◽  
Hong-zhou Yao ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Quantum Monte Carlo ◽  
Monte Carlo Calculation ◽  
Metal Organic Frameworks ◽  
Experimental Measurements ◽  
Function Structure ◽  
Structures And Properties ◽  
Structure Relation ◽  
Monte Carlo Studies ◽  
Metal Organic

Properties and the function–structure relation of four peptide-based MOFs were identified by experimental measurements, DFT and quantum Monte Carlo calculation.

scholarly journals Quantum Monte Carlo calculation for the neutron-rich Ca isotopes

2008 ◽  
Vol 35 (2) ◽  
pp. 207-211 ◽  
Author(s):  
S. Gandolfi ◽  
F. Pederiva ◽  
S. a Beccara
Keyword(s):  
Monte Carlo ◽  
Quantum Monte Carlo ◽  
Monte Carlo Calculation
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