32 citations · 81 across the 10 of their papers we have counts for
4 papers · 1 filter
Long-time equilibration can determine transient thermality
Karen V. Hovhannisyan, Somayyeh Nemati, Carsten Henkel +1
When two initially thermal many-body systems start interacting strongly, their transient states quickly become non-Gibbsian, even if the systems eventually equilibrate. To see beyo…
Coupling function from bath density of states
Somayyeh Nemati, Carsten Henkel, Janet Anders
Modelling of an open quantum system requires knowledge of parameters that specify how it couples to its environment. However, beyond relaxation rates, realistic parameters for spec…
Fidelity approach: the misleading role of finite size level crossing of excited energies
Somayyeh Nemati, Fatemeh Khastehdel Fumani, Saeed Mahdavifar
Here, we show that, although quantum fidelity can truly identify two quantum phase transitions of a one-dimensional spin-1/2 quantum Ising model with competing nearest and next-nea…
Magnetic Entanglement in Spin-1/2 XX Chains
Fatemeh Khastehdel Fumani, Somayyeh Nemati, Saeed Mahdavifar +1
In the study of entanglement in a spin chain, people often consider the nearest-neighbor spins. The motivation is the prevailing role of the short range interactions in creating qu…