Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Richard Scalettar"'
Publikováno v:
npj Computational Materials, Vol 9, Iss 1, Pp 1-9 (2023)
Abstract The relationship between electron–phonon (e-ph) interactions and charge-density-wave (CDW) order in the bismuthate family of high-temperature superconductors remains unresolved. We address this question using nonperturbative hybrid Monte C
Externí odkaz:
https://doaj.org/article/848878272a3149df91038d08d2bcbb7e
Autor:
Chunhan Feng, Eduardo Ibarra-García-Padilla, Kaden R. A. Hazzard, Richard Scalettar, Shiwei Zhang, Ettore Vitali
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043267 (2023)
We develop a self-consistent variant of the constrained path quantum Monte Carlo approach which ensures its independence of the trial wave function, and apply the method to compute ground-state correlations in the two-dimensional SU(3) Fermi-Hubbard
Externí odkaz:
https://doaj.org/article/c1418780e8244ca2a424f5ccfd4921f8
Publikováno v:
Carbon Trends, Vol 9, Iss , Pp 100231- (2022)
Numerical approaches to the correlated electron problem have achieved considerable success, yet are still constrained by several bottlenecks, including high order polynomial or exponential scaling in system size, long autocorrelation times, challenge
Externí odkaz:
https://doaj.org/article/b1f5c75979204ff6acbfe4b6afff0cc1
Publikováno v:
Physical Review X, Vol 6, Iss 2, p 021029 (2016)
The direct transition from an insulator to a superconductor (SC) in Fermi systems is a problem of long-standing interest, which necessarily goes beyond the standard BCS paradigm of superconductivity as a Fermi surface instability. We introduce here a
Externí odkaz:
https://doaj.org/article/55ca74ef12c24833aca3b485f8dc775d
Publikováno v:
Physical Review B. 106
Simulating models for quantum correlated matter unveils the inherent limitations of deterministic classical computations. In particular, in the case of quantum Monte Carlo methods, this is manifested by the emergence of negative weight configurations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::585197cd1e1e2fc85b1facdecc9d3480
https://doi.org/10.1103/physrevb.106.205113
https://doi.org/10.1103/physrevb.106.205113
Autor:
Benjamin Cohen-Stead, Owen Bradley, Cole Miles, George Batrouni, Richard Scalettar, Kipton Barros
We introduce methodologies for highly scalable quantum Monte Carlo simulations of electron-phonon models, and we report benchmark results for the Holstein model on the square lattice. The determinant quantum Monte Carlo (DQMC) method is a widely used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bb975bc8b91bdf94b7789170316ae5d
http://arxiv.org/abs/2203.01291
http://arxiv.org/abs/2203.01291
We calculate properties of dipolar interacting ultracold molecules or Rydberg atoms in a semi-synthetic three-dimensional configuration -- one synthetic dimension plus a two-dimensional real space optical lattice or periodic microtrap array -- using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::762a484cc409f24b3add35e17bbaee9b
http://arxiv.org/abs/2202.08540
http://arxiv.org/abs/2202.08540
Autor:
Cole Miles, Benjamin Cohen-Stead, Owen Bradley, Steven Johnston, Richard Scalettar, Kipton Barros
We present a method to facilitate Monte Carlo simulations in the grand canonical ensemble given a target mean particle number. The method imposes a fictitious dynamics on the chemical potential, to be run concurrently with the Monte Carlo sampling of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29175ee8ffc6718044bed7220bb379a1
http://arxiv.org/abs/2201.01296
http://arxiv.org/abs/2201.01296
Publikováno v:
Quantum 2.0 Conference and Exhibition.
We model an all-photonic quantum simulator that consists of a solid-state coupled-cavity array with integrated ensembles of color centers. We quantify conditions for polariton creation that overcome the setbacks of moderate spectral dispersion.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9157256452974402937627cf0f7405a2
https://doi.org/10.1364/quantum.2022.qtu3a.6
https://doi.org/10.1364/quantum.2022.qtu3a.6
Autor:
Richard Scalettar, Roland Omnès
Publikováno v:
Physics Today. 52:62-64
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::790a2caa5e20f5b731f73bd2e6f3a8b0
https://doi.org/10.1063/1.882912
https://doi.org/10.1063/1.882912