228 citations · 529 across the 12 of their papers we have counts for
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quant-ph2012★ 7 cited
General PT-Symmetric Matrices
Jia-wen Deng, Uwe Guenther, Qing-hai Wang
Three ways of constructing a non-Hermitian matrix with possible all real eigenvalues are discussed. They are PT symmetry, pseudo-Hermiticity, and generalized PT symmetry. Parameter…
quant-ph2012★ 55 cited
Time-dependent Hamiltonians with 100% evolution speed efficiency
Raam Uzdin, Uwe Guenther, Saar Rahav +1
The evolution speed in projective Hilbert space is considered for Hermitian Hamiltonians and for non-Hermitian (NH) ones. Based on the Hilbert-Schmidt norm and the spectral norm of…
quant-ph2007★ 38 cited
The PT-symmetric brachistochrone problem, Lorentz boosts and non-unitary operator equivalence classes
Uwe Guenther, Boris F. Samsonov
The PT-symmetric (PTS) quantum brachistochrone problem is reanalyzed as quantum system consisting of a non-Hermitian PTS component and a purely Hermitian component simultaneously.…