Seminário
Chiral qubit basis and eigenstates of spin chains with nontrivial topology
Viktor Popkov
Quarta-feira, 27 de Setembro 2023 das 14:30 às 16:00
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Sala de Seminários do DF, Pavilhão de Física, 2º piso
Abstract:
Phantom Bethe excitations in integrable spin chains (XXZ,XYZ Heisenbergmodel) generate eigenstates with nontrivial topology, a spin helix statebeing a representative. I will show that it is natural to describe thesetopological states with chiral basis instead of the computational basis. Wepropose an orthonormal basis for qubits, and demonstrate its usage for anexperimentally relevant problem in cold atoms.