Quantum Renyi relative entropies on a spin chain with interface defects
arXiv:1908.01787 · doi:10.1088/1742-5468/ab5d0d
Abstract
We compute the quantum Renyi relative entropies in an infinite spinless fermionic chain with a defect. Doing a numerical analysis we will show that the resulting quantity depends non trivially on the effective central charge of the theory. Moreover, we will see that an explicit analytic expression can be written for all of them and from that, one can read the quantum fidelity and the relative entropy.
arXiv comment13 pages, 18 figures. References added
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