%0 Journal Article
%A Koczor, Bálint
%A Zeier, Robert
%A Glaser, Steffen J.
%T Fast computation of spherical phase-space functions of quantum many-body states
%J Physical review / A
%V 102
%N 6
%@ 2469-9926
%M FZJ-2020-05407
%P 062421
%D 2020
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000600817700004
%R 10.1103/PhysRevA.102.062421
%U https://juser.fz-juelich.de/record/889034