Ising analogs of quantum spin chains with multispin interactions
A new family of free fermionic quantum spin chains with multispin interactions was recently
introduced. Here we show that it is possible to build standard quantum Ising chains—but …
introduced. Here we show that it is possible to build standard quantum Ising chains—but …
Fermionic logarithmic negativity in the Krawtchouk chain
The entanglement of non-complementary regions is investigated in an inhomogeneous free-
fermion chain through the lens of the fermionic logarithmic negativity. Focus is on the …
fermion chain through the lens of the fermionic logarithmic negativity. Focus is on the …
Symmetry-resolved Rényi fidelities and quantum phase transitions
G Parez - Physical Review B, 2022 - APS
We introduce a family of quantum Rényi fidelities and discuss their symmetry resolution. We
express the symmetry-resolved fidelities as Fourier transforms of charged fidelities, for which …
express the symmetry-resolved fidelities as Fourier transforms of charged fidelities, for which …
[HTML][HTML] Multipartite information of free fermions on Hamming graphs
We investigate multipartite information and entanglement measures in the ground state of a
free-fermion model defined on a Hamming graph. Using the known diagonalization of the …
free-fermion model defined on a Hamming graph. Using the known diagonalization of the …
Entanglement of free-fermion systems, signal processing and algebraic combinatorics
PA Bernard, N Crampé, RI Nepomechie… - ar** terms on the edges of the graph, and a global interaction term depending on …