A Localized-Orbital Energy Evaluation for Auxiliary-Field Quantum Monte Carlo.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.2c00111
Abstract: Phaseless auxiliary-field quantum Monte Carlo (ph-AFQMC) has recently emerged as a promising method for the production of benchmark-level simulations of medium- to large-sized molecules because of its accuracy and favorable polynomial scaling with system size.… read more here.
Keywords: quantum monte; energy; localized orbital; auxiliary field ... See more keywords
Beyond CCSD(T) Accuracy at Lower Scaling with Auxiliary Field Quantum Monte Carlo.
Sign Up to like & getrecommendations! Published in 2024 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.4c01314
Abstract: We introduce a black-box auxiliary field quantum Monte Carlo (AFQMC) approach to perform highly accurate electronic structure calculations using configuration interaction singles and doubles (CISD) trial states. This method consistently provides more accurate energy estimates… read more here.
Keywords: quantum monte; field quantum; monte carlo; auxiliary field ... See more keywords
Phaseless Auxiliary-Field Quantum Monte Carlo on Graphical Processing Units.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.8b00342
Abstract: 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… read more here.
Keywords: phaseless auxiliary; graphical processing; auxiliary field; monte carlo ... See more keywords
Sending-or-not-sending twin-field quantum key distribution in practice
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-39225-y
Abstract: Recently, the twin field quantum key distribution (TF-QKD) protocols have been investigated extensively. In particular, an efficient protocol for TF-QKD with sending or not sending the coherent state has been given in. Here in this… read more here.
Keywords: twin field; key distribution; field quantum; sending sending ... See more keywords
Super-resolution wide-field quantum sensing
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0225954
Abstract: Wide-field quantum sensing and imaging with solid-state spins has attracted wide interest for its ability to detect relative physical quantities with high sensitivity at nanoscale. However, the optical diffraction limit hinders the improvement in spatial… read more here.
Keywords: resolution; wide field; quantum sensing; field quantum ... See more keywords
Practical decoy-state method for twin-field quantum key distribution
Sign Up to like & getrecommendations! Published in 2019 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ab2b00
Abstract: Twin-Field (TF) quantum key distribution (QKD) represents a novel QKD approach whose principal merit is to beat the point-to-point private capacity of a lossy quantum channel, thanks to performing single-photon interference in an untrusted node.… read more here.
Keywords: twin field; state method; decoy state; key distribution ... See more keywords
Twin-field quantum key distribution with large misalignment error
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.062323
Abstract: Based on the novel idea of twin-field quantum key distribution [TF-QKD; Lucamarini et al., Nature (London) 557, 400 (2018)], we present a protocol named the ``sending or not sending TF-QKD'' protocol, which can tolerate large… read more here.
Keywords: error; twin field; field quantum; misalignment error ... See more keywords
Simple Multiuser Twin-Field Quantum Key Distribution Network
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.17.014025
Abstract: Xiaoqing Zhong,1, ∗ Wenyuan Wang,1, † Reem Mandil,1 Hoi-Kwong Lo,1, 2, 3 and Li Qian2 Center for Quantum Information and Quantum Control, Dept. of Physics, University of Toronto, Toronto, Ontario, M5S 1A7, Canada Center for… read more here.
Keywords: twin field; physics; multiuser twin; field quantum ... See more keywords
Metal-insulator and magnetic phase diagram of Ca2RuO4 from auxiliary field quantum Monte Carlo and dynamical mean field theory
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.235110
Abstract: Layered perovskite ruthenium oxides exhibit a striking series of metal-insulator and magnetic-nonmagnetic phase transitions easily tuned by temperature, pressure, epitaxy, and nonlinear drive. In this work, we combine results from two complementary state-of-the-art many-body methods,… read more here.
Keywords: monte carlo; field; auxiliary field; quantum monte ... See more keywords
Feasibility of twin-field quantum key distribution based on multi-mode coherent phase-coded states.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.036551
Abstract: In this paper we propose feasibility demonstration of twin-field quantum key ditribution system based on multi-mode weak coherent phase-coded states. Their utilization provides indisputable advantages described in the paper. We also provide the detailed description… read more here.
Keywords: twin field; quantum; multi mode; field quantum ... See more keywords
Long-distance twin-field quantum key distribution with entangled sources
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.443099
Abstract: Twin-field quantum key distribution (TFQKD), using single-photon-type interference, offers a way to exceed the rate-distance limit without quantum repeaters. However, it still suffers from photon losses and dark counts, which impose an ultimate limit on… read more here.
Keywords: key distribution; twin field; distance; quantum key ... See more keywords