Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Herdman, C"'
Publikováno v:
SciPost Phys. 14, 054 (2023)
A ground state path integral quantum Monte Carlo algorithm is introduced that allows for the study of entanglement in lattice bosons at zero temperature. The R\'enyi entanglement entropy between spatial subregions is explored across the phase diagram
Externí odkaz:
http://arxiv.org/abs/2207.11301
Autor:
Volkoff, T. J., Herdman, C. M.
Publikováno v:
Phys. Rev. A 100, 022331 (2019)
We consider an extended Bose-Hubbard model that includes pair-correlated tunneling. We demonstrate that a minimal four-mode implementation of this model exhibits a pair-correlated regime in addition to Mott insulator and superfluid regimes. We propos
Externí odkaz:
http://arxiv.org/abs/1901.00879
Publikováno v:
Phys. Rev. Lett. 121, 150501 (2018)
Operationally accessible entanglement in bipartite systems of indistinguishable particles could be reduced due to restrictions on the allowed local operations as a result of particle number conservation. In order to quantify this effect, Wiseman and
Externí odkaz:
http://arxiv.org/abs/1804.01114
Publikováno v:
Phys. Rev. A 98, 032322 (2018)
We demonstrate the existence of a finite temperature threshold for a 1D stabilizer code under an error correcting protocol that requires only a fraction of the syndrome measurements. Below the threshold temperature, encoded states have exponentially
Externí odkaz:
http://arxiv.org/abs/1708.02260
Autor:
Myers, Owen, Herdman, C. M.
Publikováno v:
Phys. Rev. B 96, 174434 (2017)
We introduce the quantum dimer-pentamer model (QDPM) on the square lattice. This model is a generalization of the square lattice quantum dimer model as its configuration space comprises fully-packed hard-core dimer coverings as well as dimer configur
Externí odkaz:
http://arxiv.org/abs/1704.02063
Publikováno v:
Nature Phys. 13, 556 (2017)
Area laws were first discovered by Bekenstein and Hawking, who found that the entropy of a black hole grows proportional to its surface area, and not its volume. Entropy area laws have since become a fundamental part of modern physics, from the holog
Externí odkaz:
http://arxiv.org/abs/1610.08518
Publikováno v:
Phys. Rev. B 94, 064524 (2016)
We consider the entanglement between two spatial subregions in the Lieb-Liniger model of bosons in one spatial dimension interacting via a contact interaction. Using ground state path integral quantum Monte Carlo we numerically compute the R\'{e}nyi
Externí odkaz:
http://arxiv.org/abs/1606.03396
Publikováno v:
Phys. Rev. A 96, 012311 (2017)
We present an error correcting protocol that enhances the lifetime of stabilizer code based qubits which are susceptible to the creation of pairs of localized defects (due to string-like error operators) at finite temperature, such as the toric code.
Externí odkaz:
http://arxiv.org/abs/1603.05005
Publikováno v:
Phys. Rev. A 93, 042336 (2016)
Inspired by the experimental measurement of the Renyi entanglement entropy in a lattice of ultracold atoms by Islam et al., [Nature 528, 77 (2015)] we propose a method to entangle two spatially-separated qubits using the quantum many-body state as a
Externí odkaz:
http://arxiv.org/abs/1512.06462
Publikováno v:
Phys. Rev. B 92, 115146 (2015)
In the face of mounting numerical evidence, Metlitski and Grover [arXiv:1112.5166] have given compelling analytical arguments that systems with spontaneous broken continuous symmetry contain a sub-leading contribution to the entanglement entropy that
Externí odkaz:
http://arxiv.org/abs/1502.01722