27 citations · 46 across the 4 of their papers we have counts for
4 papers
Intermittency and dynamical Lee-Yang zeros of open quantum systems
James M. Hickey, Christian Flindt, Juan P. Garrahan
We use high-order cumulants to investigate the Lee-Yang zeros of generating functions of dynamical observables in open quantum systems. At long times the generating functions take…
Timescales, dynamical phase transitions and 3rd order phase transitions in the 1d anisotropic XY model
James M. Hickey
Recent research into time-integrated observables has revealed a special class of states which cap- ture the singular features of the generating functions of those observables, as e…
Cumulants of time-integrated observables of closed quantum systems and PT-symmetry, with an application to the quantum Ising chain
James M. Hickey, Emanuele Levi, Juan P. Garrahan
We study the connection between the cumulants of a time-integrated observable of a quantum system and the PT-symmetry properties of the non-Hermitian deformation of the Hamiltonian…
Fluctuation Theorems and the Generalised Gibbs Ensemble in Integrable Systems
James M. Hickey, Sam Genway
We derive fluctuation relations for a many-body quantum system prepared in a Generalised Gibbs Ensemble subject to a general nonequilibrium protocol. By considering isolated integr…