Zobrazeno 1 - 10
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pro vyhledávání: '"Huerta, Marina"'
Autor:
Huerta, Marina, van der Velde, Guido
In this article, we extend our study on a new class of modular Hamiltonians on an interval attached to the origin on the semi-infinite line, introduced in a recent work dedicated to scalar fields. Here, we shift our attention to fermions and similarl
Externí odkaz:
http://arxiv.org/abs/2307.08755
Autor:
Huerta, Marina, van der Velde, Guido
We focus our attention on the one dimensional scalar theories that result from dimensionally reducing the free scalar field theory in arbitrary d dimensions. As is well known, after integrating out the angular coordinates, the free scalar theory can
Externí odkaz:
http://arxiv.org/abs/2301.00294
Autor:
Huerta, Marina, van der Velde, Guido
The role of symmetries in what concerns entanglement entropy has been extensively explored in the last years and revealed a profound connection with the quantum field theory's algebraic structure. Recently, it was found that some universal contributi
Externí odkaz:
http://arxiv.org/abs/2204.09464
Autor:
Casini, Horacio, Huerta, Marina
These notes grew from a series of lectures given by the authors during the last decade. They will be published in the proceedings of TASI 2021. After a brief introduction to quantum information theory tools, they are organized in four chapters coveri
Externí odkaz:
http://arxiv.org/abs/2201.13310
We propose entropic order parameters that capture the physics of generalized symmetries and phases in QFT's. We do it through an analysis of simple properties (additivity and Haag duality) of the net of operator algebras attached to space-time region
Externí odkaz:
http://arxiv.org/abs/2008.11748
Publikováno v:
Phys. Rev. D 101, 065020 (2020)
We elucidate the mismatch between the $A$-anomaly coefficient and the coefficient of the logarithmic term in the entanglement entropy of a Maxwell field. In contrast to the usual assumptions about the protection of renormalization group charges at th
Externí odkaz:
http://arxiv.org/abs/1911.00529
Some quantum field theories show, in a fundamental or an effective manner, an alternative between a loss of duality for algebras of operators corresponding to complementary regions, or a loss of additivity. In this latter case, the algebra contains s
Externí odkaz:
http://arxiv.org/abs/1905.10487
Publikováno v:
Phys. Rev. D 98, 125008 (2018)
We calculate the analytic form of the vacuum modular Hamiltonian for a two interval region and the algebra of a current $j(x)=\partial \phi(x)$ corresponding to a chiral free scalar $\phi$ in $d=2$. We also compute explicitly the mutual information b
Externí odkaz:
http://arxiv.org/abs/1809.00026
Autor:
Huerta, Marina, Pedraza, Leonardo A.
We calculate numerically the logarithmic contribution to the entanglement entropy of a cylindrical region in three spatial dimensions for a Maxwell field. Our result does not agree with the analytical predictions concerning any conformal field theory
Externí odkaz:
http://arxiv.org/abs/1808.01864
Publikováno v:
Phys. Rev. D 96, 105019 (2017)
The relative entropy between very high energy localized excitations and the vacuum, where both states are reduced to a spatial region, gives place to a precise definition of a local temperature produced by vacuum entanglement across the boundary. Thi
Externí odkaz:
http://arxiv.org/abs/1707.05375