Entanglement measures in the Kitaev model
Семинары
Теория конденсированных сред — семинар «Статистическая механика»
Дата и время: вторник, 16 января 2018 г., в 16:00
Место: Конференц-зал им. Блохинцева (4-й этаж), Лаборатория теоретической физики им. Н.Н. Боголюбова
Тема семинара: «Entanglement measures in the Kitaev model»
Докладчик: Moitri Maiti (ЛТФ, ОИЯИ)
Аннотация:
We investigate entanglement measures in an exactly solvable 2D quantum spin model, namely, the Kitaev model. The Kitaev model on the honeycomb lattice is an example of a system with long-range entanglement (LRE) having intrinsic topological order and are known to exhibit exotic properties as topologically dependent degenerate ground states, fractional excitations and so on. I will discuss analysis of the von Neumann entanglement entropy and Schmidt gap in the vortex-free ground state of the Kitaev model for square/rectangular and cylindrical subsystems and show how the gapless edge states influence the qualitative behaviour of these measures.