Browsing Science (Faculty of) by Author "Iouchtchenko, Dmitri"
Now showing items 1-5 of 5
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Entangling qubit registers via many-body states of ultracold atoms
Melko, Roger; Herdman, Chris; Iouchtchenko, Dmitri; Roy, Pierre-Nicholas; Del Maestro, Adrian (American Physical Society, 2016-04-25)Inspired by the experimental measurement of the Rényi entanglement entropy in a lattice of ultracold atoms by Islam et al. [Nature (London) 528, 77 (2015)], we propose a method to entangle two spatially separated qubits ... -
Ground states of linear rotor chains via the density matrix renormalization group
Iouchtchenko, Dmitri; Roy, Pierre-Nicholas (American Institute of Physics, 2018-04-04)In recent years, experimental techniques have enabled the creation of ultracold optical lattices of molecules and endofullerene peapod nanomolecular assemblies. It was previously suggested that the rotor model resulting ... -
A path integral methodology for obtaining thermodynamic properties of nonadiabatic systems using Gaussian mixture distributions
Raymond, Neil; Iouchtchenko, Dmitri; Roy, Pierre-Nicholas; Nooijen, Marcel (American Institute of Physics, 2018-05)We introduce a new path integral Monte Carlo method for investigating nonadiabatic systems in thermal equilibrium and demonstrate an approach to reducing stochastic error. We derive a general path integral expression for ... -
Quantifying entanglement of rotor chains using basis truncation: Application to dipolar endofullerene peapods
Halverson, Tom; Iouchtchenko, Dmitri; Roy, Pierre-Nicholas (American Institute of Physics, 2018-02-21)We propose a variational approach for the calculation of the quantum entanglement entropy of assemblies of rotating dipolar molecules. A basis truncation scheme based on the total angular momentum quantum number is proposed. ... -
Variations on PIGS: Non-standard approaches for imaginary-time path integrals
Iouchtchenko, Dmitri (University of Waterloo, 2015-08-21)The second Rényi entropy has been used as a measure of entanglement in various model systems, including those on a lattice and in the continuum. The present work focuses on extending the existing ideas to measurement of ...