Journal Article

FZJ-2020-05407

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Fast computation of spherical phase-space functions of quantum many-body states

Koczor, B. (Corresponding author) ; Zeier, R.FZJ* ; Glaser, S. J.

2020

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Please use a persistent id in citations: http://hdl.handle.net/2128/26614  doi:10.1103/PhysRevA.102.062421

Abstract: Quantum devices are preparing increasingly more complex entangled quantum states. How can one effectively study these states in light of their increasing dimensions? Phase spaces such as Wigner functions provide a suitable framework. We focus on spherical phase spaces for finite-dimensional quantum states of single qudits or permutationally symmetric states of multiple qubits. We present methods to efficiently compute the correspond- ing spherical phase-space functions which are at least an order of magnitude faster than traditional methods. Quantum many-body states in much larger dimensions can now be effectively studied by experimentalists and theorists using spherical phase-space techniques.

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Contributing Institute(s):

1. Quantum Control (PGI-8)

Research Program(s):

1. 142 - Controlling Spin-Based Phenomena (POF3-142) (POF3-142)
2. 522 - Controlling Spin-Based Phenomena (POF3-522) (POF3-522)
3. PASQuanS - Programmable Atomic Large-Scale Quantum Simulation (817482) (817482)

Appears in the scientific report 2020

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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