The Fermionic Signature Operator in De Sitter Spacetime

Claudio Dappiaggi, Felix Finster, Simone Murro, Emanuela Radici
February 25, 2019
Hadamard states, Ferminic Signature Operator, Dirac operator, de Sitter spacetime
open access link doi:10.1016/j.jmaa.2019.123808

Ground state for a massive scalar field in BTZ spacetime with Robin boundary conditions

Francesco Bussola, Claudio Dappiaggi, Hugo R. C. Ferreira, Igor Khavkine
August 01, 2017
black holes, Hadamard states, scalar field
open access link Phys. Rev. D 96, 105016 (2017)

Hadamard states for quantum Abelian duality

Marco Benini, Matteo Capoferri, Claudio Dappiaggi
November 30, 2016
Abelian duality, Abelian gauge theory, Hadamard states
open access link Ann. Henri Poincaré 18(10), 3325-3370 (2017)

Hadamard states for a scalar field in anti-de Sitter spacetime with arbitrary boundary conditions

Claudio Dappiaggi, Hugo R. C. Ferreira
October 04, 2016
Hadamard states, boundary conditions, AdS spacetime
open access link Phys. Rev. D 94, 125016 (2016)

A new deformation argument for Hadamard states via an extended Møller operator

Claudio Dappiaggi, Nicolò Drago
June 30, 2015
quantum field theory on curved spacetimes, Hadamard states
open access link Lett Math Phys (2016) 106(11), 1587-1615

Hadamard states from null infinity

Claudio Dappiaggi
January 20, 2015
quantum field theory on curved spacetimes, Hadamard states
open access link

Distinguished quantum states in a class of cosmological spacetimes and their Hadamard property

Claudio Dappiaggi, Valter Moretti, Nicola Pinamonti
December 21, 2008
QFT on curved spacetimes, Hadamard states, cosmological spacetimes
open access link J.Math.Phys. 50 (2009) 062304

Cosmological horizons and reconstruction of quantum field theories

Claudio Dappiaggi, Valter Moretti, Nicola Pinamonti
December 11, 2007
Hadamard states, cosmological spacetimes
open access link Comm.Math.Phys.285:1129-1163,2009