39 citations · 190 across the 16 of their papers we have counts for
8 papers · 1 filter
Genuine multientropy, dihedral invariants and Lifshitz theory
Clément Berthière, Paul Gaudin
Multi-invariants are local-unitary invariants of state replicas introduced as potential probes of multipartite entanglement and correlations in quantum many-body systems. In this p…
Reflected entropy and Markov gap in Lifshitz theories
Clément Berthiere, Bin Chen, Hongjie Chen
We study the reflected entropy in --dimensional Lifshitz field theory whose groundstate is described by a quantum mechanical model. Starting from tripartite Lifshitz grounds…
Reflected entropy and computable cross-norm negativity: Free theories and symmetry resolution
Clément Berthiere, Gilles Parez
We investigate a separability criterion based on the computable cross-norm (CCNR), and a related quantity called the CCNR negativity. We introduce a reflected version of the CCNR n…
Topological reflected entropy in Chern-Simons theories
Clément Berthiere, Hongjie Chen, Yuefeng Liu +1
We study the reflected entropy between two spatial regions in -dimensional Chern-Simons theories. Taking advantage of its replica trick formulation, the reflected entropy is…
The quantum fate of black hole horizons
Clement Berthiere, Debajyoti Sarkar, Sergey N. Solodukhin
The presence of a horizon is the principal marker for black holes as they appear in the classical theory of gravity. In General Relativity (GR), horizons have several defining prop…
Holographic calculation of entanglement entropy in the presence of boundaries
Amin Faraji Astaneh, Clement Berthiere, Dmitri Fursaev +1
When a spacetime has boundaries, the entangling surface does not have to be necessarily compact and it may have boundaries as well. Then there appear a new, boundary, contribution…
Boundary effects in entanglement entropy
Clement Berthiere, Sergey N. Solodukhin
We present a number of explicit calculations of Renyi and entanglement entropies in situations where the entangling surface intersects the boundary in -dimensional Minkowski spa…
Comparison theorems for causal diamonds
Clement Berthiere, Gary Gibbons, Sergey N. Solodukhin
We formulate certain inequalities for the geometric quantities characterizing causal diamonds in curved and Minkowski spacetimes. These inequalities involve the red-shift factor wh…