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quant-ph2020
Vacancy-like dressed states in topological waveguide QED
Luca Leonforte, Angelo Carollo, Francesco Ciccarello
We identify a class of dressed atom-photon states formingat the same energy of the atom at any coupling strength. As a hallmark, their photonic component is an eigenstate of the ba…
quant-ph2018
Uhlmann number in translational invariant systems
Luca Leonforte, Davide Valenti, Bernardo Spagnolo +1
We define the Uhlmann number as an extension of the Chern number, and we use this quantity to describe the topology of 2D translational invariant Fermionic systems at finite temper…