14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PisaIT5.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT4k papers
- Centre National de la Recherche ScientifiqueFR3.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT3.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.6k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT3.5k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT3.3k papers
- Rutherford Appleton LaboratoryGB3.3k papers
- European Organization for Nuclear ResearchCH3.1k papers
- The Ohio State UniversityUS3.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3k papers
- Massachusetts Institute of TechnologyUS3k papers
7 papers · 2 filters
Parity effects in the scaling of block entanglement in gapless spin chains
Pasquale Calabrese, Massimo Campostrini, Fabian Essler +1
We consider the Renyi alpha-entropies for Luttinger liquids (LL). For large block lengths l these are known to grow like ln l. We show that there are subleading terms that oscillat…
Entanglement entropy of excited states
Vincenzo Alba, Maurizio Fagotti, Pasquale Calabrese
We study the entanglement entropy of a block of contiguous spins in excited states of spin chains. We consider the XY model in a transverse field and the XXZ Heisenberg spin-chain.…
Entanglement entropy of two disjoint blocks in critical Ising models
Vincenzo Alba, Luca Tagliacozzo, Pasquale Calabrese
We study the scaling of the Renyi and entanglement entropy of two disjoint blocks of critical Ising models, as function of their sizes and separations. We present analytic results…
Trap-size scaling in confined particle systems at quantum transitions
Massimo Campostrini, Ettore Vicari
We develop a trap-size scaling theory for trapped particle systems at quantum transitions. As a theoretical laboratory, we consider a quantum XY chain in an external transverse fie…
Entanglement entropy and conformal field theory
Pasquale Calabrese, John Cardy
We review the conformal field theory approach to entanglement entropy. We show how to apply these methods to the calculation of the entanglement entropy of a single interval, and t…
Critical behavior and scaling in trapped systems
Massimo Campostrini, Ettore Vicari
We study the scaling properties of critical particle systems confined by a potential. Using renormalization-group arguments, we show that their critical behavior can be cast in the…
Quantum Quench from a Thermal Initial State
Spyros Sotiriadis, Pasquale Calabrese, John Cardy
We consider a quantum quench in a system of free bosons, starting from a thermal initial state. As in the case where the system is initially in the ground state, any finite subsyst…