Results 81 to 90 of about 637,276 (316)

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Quantum computing for data-centric engineering and science

open access: yesData-Centric Engineering, 2022
In this perspective, I give my answer to the question of how quantum computing will impact on data-intensive applications in engineering and science.
Steven Herbert
doaj   +1 more source

Quantum Monte Carlo for minimum energy structures

open access: yes, 2010
We present an efficient method to find minimum energy structures using energy estimates from accurate quantum Monte Carlo calculations. This method involves a stochastic process formed from the stochastic energy estimates from Monte Carlo that can be ...
Jeffrey C. Grossman   +2 more
core   +1 more source

Phaseless Auxiliary-Field Quantum Monte Carlo on Graphical Processing Units. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2018
We present an implementation of phaseless Auxiliary-Field Quantum Monte Carlo (ph-AFQMC) utilizing graphical processing units (GPUs). The AFQMC method is recast in terms of matrix operations which are spread across thousands of processing cores and are ...
J. Shee   +4 more
semanticscholar   +1 more source

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

Quantum Monte Carlo simulations for estimating FOREX markets: a speculative attacks experience

open access: yesHumanities & Social Sciences Communications, 2023
The foreign exchange markets, renowned as the largest financial markets globally, also stand out as one of the most intricate due to their substantial volatility, nonlinearity, and irregular nature. Owing to these challenging attributes, various research
David Alaminos   +2 more
doaj   +1 more source

The Quantum Amplitude Estimation Algorithms on Near-Term Devices: A Practical Guide

open access: yesQuantum Reports, 2023
The Quantum Amplitude Estimation (QAE) algorithm is a major quantum algorithm designed to achieve a quadratic speed-up. Until fault-tolerant quantum computing is achieved, being competitive over classical Monte Carlo (MC) remains elusive.
Marco Maronese   +3 more
doaj   +1 more source

Random walks near Rokhsar-Kivelson points

open access: yes, 2005
There is a class of quantum Hamiltonians known as Rokhsar-Kivelson(RK)-Hamiltonians for which static ground state properties can be obtained by evaluating thermal expectation values for classical models.
Fazekas P.   +14 more
core   +1 more source

Auxiliary Field Diffusion Monte Carlo calculation of nuclei with A<40 with tensor interactions [PDF]

open access: yes, 2007
We calculate the ground-state energy of 4He, 8He, 16O, and 40Ca using the auxiliary field diffusion Monte Carlo method in the fixed phase approximation and the Argonne v6' interaction which includes a tensor force.
Fantoni, S.   +3 more
core   +1 more source

Driven-dissipative quantum Monte Carlo method for open quantum systems [PDF]

open access: yesPhysical Review A, 2018
We develop a real-time Full Configuration Interaction Quantum Monte Carlo approach for the modeling of driven-dissipative open quantum systems. The method enables stochastic sampling of the Liouville-von-Neumann time evolution of the density matrix ...
A. Nagy, V. Savona
semanticscholar   +1 more source

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