Results 91 to 100 of about 1,075,816 (186)

Quantum process tomography with unsupervised learning and tensor networks. [PDF]

open access: yesNat Commun, 2023
Torlai G   +5 more
europepmc   +1 more source

Discrete Quantum Gravity

open access: yes, 2011
We discuss the causal set approach to discrete quantum gravity. We begin by describing a classical sequential growth process in which the universe grows one element at a time in discrete steps.
Gudder, Stan
core  

Quantum stochastic calculus and quantum Gaussian processes [PDF]

open access: yesIndian Journal of Pure and Applied Mathematics, 2015
In this lecture we present a brief outline of boson Fock space stochastic calculus based on the creation, conservation and annihilation operators of free field theory, as given in the 1984 paper of Hudson and Parthasarathy. We show how a part of this architecture yields Gaussian fields stationary under a group action.
openaire   +3 more sources

Revisiting Dynamics of Quantum Causal Structures—When Can Causal Order Evolve?

open access: yesEntropy
Recently, there has been substantial interest in studying the dynamics of quantum theory beyond that of states, in particular, the dynamics of channels, measurements, and higher-order transformations. Castro-Ruiz et al.
John H. Selby   +2 more
doaj   +1 more source

Error matrices in quantum process tomography

open access: yes, 2013
We discuss characterization of experimental quantum gates by the error matrix, which is similar to the standard process matrix $\chi$ in the Pauli basis, except the desired unitary operation is factored out, by formally placing it either before or after ...
Korotkov, Alexander N.
core  

Classical shadows for quantum process tomography on near-term quantum computers

open access: yesPhysical Review Research
Quantum process tomography is a powerful tool for understanding quantum channels and characterizing the properties of quantum devices. Inspired by recent advances using classical shadows in quantum state tomography [H.-Y. Huang, R. Kueng, and J. Preskill,
Ryan Levy, Di Luo, Bryan K. Clark
doaj   +1 more source

Interlaced Laser Beam Scanning: A Method Enabling an Increase in the Throughput of Ultrafast Laser Machining of Borosilicate Glass

open access: yesJournal of Manufacturing and Materials Processing, 2019
We provide experimental evidence that the laser beam scanning strategy has a significant influence on material removal rate in the ultrafast laser machining of glass.
Krystian L. Wlodarczyk   +4 more
doaj   +1 more source

Thermodynamic Capacity of Quantum Processes

open access: yesPhysical Review Letters, 2019
6 pages, 2 figures, journal version. The technical appendix was split off into a companion paper that will be submitted separately (cf. today's arXiv listing)
Faist, Philippe   +2 more
openaire   +6 more sources

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