Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Fazio, Cecilia"'
We introduce a stochastic generalisation of the classical deterministic Floquet-East model, a discrete circuit with the same kinetic constraint as the East model of glasses. We prove exactly that, in the limit of long time and large size, this model
Externí odkaz:
http://arxiv.org/abs/2406.17464
Publikováno v:
Phys. Rev. Lett. 132, 120402 (2024)
We study the nonequilibrium dynamics of the Floquet quantum East model (a Trotterized version of the kinetically constrained quantum East spin chain) at its "deterministic point", where evolution is defined in terms of CNOT permutation gates. We solv
Externí odkaz:
http://arxiv.org/abs/2310.06128
Publikováno v:
Phys. Rev. E 110, L022101 (2024)
We study the dynamics of a classical circuit corresponding to a discrete-time kinetically constrained East model. We show that this classical "Floquet-East" model displays pre-transition behaviour which is a dynamical equivalent of the hydrophobic ef
Externí odkaz:
http://arxiv.org/abs/2305.07423
Autor:
Capizzi, Luca, De Fazio, Cecilia, Mazzoni, Michele, Santamaría-Sanz, Lucía, Castro-Alvaredo, Olalla A.
In a recent paper we studied the entanglement content of zero-density excited states in complex free quantum field theories, focusing on the symmetry resolved entanglement entropy (SREE). By zero-density states we mean states consisting of a fixed, f
Externí odkaz:
http://arxiv.org/abs/2206.12223
Autor:
Capizzi, Luca, Castro-Alvaredo, Olalla A., De Fazio, Cecilia, Mazzoni, Michele, Santamaría-Sanz, Lucía
The excess entanglement resulting from exciting a finite number of quasiparticles above the ground state of a free integrable quantum field theory has been investigated quite extensively in the literature. It has been found that it takes a very simpl
Externí odkaz:
http://arxiv.org/abs/2203.12556
Unstable particles rarely feature in conjunction with integrability in 1+1D quantum field theory. However, the family of homogenous sine-Gordon models provides a rare example where both stable and unstable bound states are present in the spectrum whi
Externí odkaz:
http://arxiv.org/abs/2112.05462
Publikováno v:
SciPost Phys. 12, 115 (2022)
In the context of quantum field theory (QFT), unstable particles are associated with complex-valued poles of two-body scattering matrices in the unphysical sheet of rapidity space. The Breit-Wigner formula relates this pole to the mass and life-time
Externí odkaz:
http://arxiv.org/abs/2103.03735
Publikováno v:
J. High Energ. Phys. 2020, 45 (2020)
The generalized hydrodynamic (GHD) approach has been extremely successful in describing the out-of-equilibrium properties of a great variety of integrable many-body quantum systems. It naturally extracts the large-scale dynamical degrees of freedom o
Externí odkaz:
http://arxiv.org/abs/2005.11266
Publikováno v:
J. Math. Phys. 60, 082301 (2019)
We consider two measures of entanglement, the logarithmic negativity and the entanglement entropy, between regions of space in excited states of many-body systems formed by a finite number of particle excitations. In parts I and II of the current ser
Externí odkaz:
http://arxiv.org/abs/1904.02615
Publikováno v:
JHEP11 (2019) 58
In this paper we study the increment of the entanglement entropy and of the (replica) logarithmic negativity in a zero-density excited state of a free massive bosonic theory, compared to the ground state. This extends the work of two previous publica
Externí odkaz:
http://arxiv.org/abs/1904.01035