6 papers · 1 filter
Exotic entanglement for non-Hermitian Jaynes-Cummings Hamiltonians
Thomas Frith
We provide the first solution of a time-dependent metric operator for the non-Hermitian Jaynes-Cummings Hamiltonian. We use this solution to calculate the entanglement between two…
Time-dependence in non-Hermitian quantum systems
Thomas Frith
We present a coherent and consistent framework for explicit time-dependence in non-Hermitian quantum mechanics. The area of non-Hermitian quantum mechanics has been growing rapidly…
Eternal life of entropy in non-Hermitian quantum systems
Andreas Fring, Thomas Frith
We find a new effect for the behaviour of Von Neumann entropy. For this we derive the framework for describing Von Neumann entropy in non-Hermitian quantum systems and then apply i…
Time-dependent metric for the two dimensional, non-Hermitian coupled oscillator
Andreas Fring, Thomas Frith
We provide a time-dependent Dyson map and metric for the two dimensional harmonic oscillator with a non-Hermitian coupling term. This particular time-independent model exhib…
Time-dependent Darboux (supersymmetric) transformations for non-Hermitian quantum systems
Julia Cen, Andreas Fring, Thomas Frith
We propose time-dependent Darboux (supersymmetric) transformations that provide a scheme for the calculation of explicitly time-dependent solvable non-Hermitian partner Hamiltonian…
Quasi-exactly solvable quantum systems with explicitly time-dependent Hamiltonians
Andreas Fring, Thomas Frith
For a large class of time-dependent non-Hermitain Hamiltonians expressed in terms linear and bilinear combinations of the generators for an Euclidean Lie-algebra respecting differe…