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pro vyhledávání: '"J. L. F. Barbon"'
Autor:
J. L. F. Barbon
Publikováno v:
The European Physical Journal C. 33:s67-s74
This is a rendering of a review talk on the state of String Theory, given at the EPS-2003 Conference, intended for a wide audience of experimental and theoretical physicists. It emphasizes general ideas rather than technical aspects.
11 pages. C
11 pages. C
Autor:
J. L. F. Barbon
Publikováno v:
Physics Letters B. 339:41-48
We discuss the semiclassical approximation to the level density of (super) strings propagating in non-compact coset manifolds $G/H$. We show that the WKB ansatz agrees with heuristic red-shift arguments with respect to the ``exact" sigma model metric
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-23 (2021)
Abstract Holographic complexity, in the guise of the Complexity = Volume prescription, comes equipped with a natural correspondence between its rate of growth and the average infall momentum of matter in the bulk. This Momentum/Complexity corresponde
Externí odkaz:
https://doaj.org/article/415adc59c8264ad198abe5f27683ff41
Autor:
A. Pasquinucci, J. L. F. Barbon
We consider generic MQCD configurations with matter described by semi-infinte D4-branes and softly broken supersymmetry. We show that the matter sector does not introduce supersymmetry breaking parameters so that the most relevant supersymmetry break
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5faa596d274d6d03969c4bbdae1edc59
Autor:
J. L. F. Barbon
We discuss different criteria for `classical size' of extremal Dirichlet p-branes in type-II supergravity. Using strong-weak coupling duality, we find that the size of the strong-coupling region at the core of the (p
8 pp, harvmac
8 pp, harvmac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::578b695f923bb9e1425cead09608dc6c
http://cds.cern.ch/record/322705
http://cds.cern.ch/record/322705
Autor:
M. A. Vazquez-Mozo, J. L. F. Barbon
We study some properties of target space strings constructed from (2,1) heterotic strings. We argue that world-sheet complexification is a general property of the bosonic sector of such target world-sheets. We give a target space interpretation of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::480b613d0f529bfd6882d881343f7aad
Autor:
J. L. F. Barbón, J. Martín-García
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 6, Pp 1-26 (2018)
Abstract We introduce a quasilocal version of holographic complexity adapted to ‘terminal states’ such as spacelike singularities. We use a modification of the action-complexity ansatz, restricted to the past domain of dependence of the terminal
Externí odkaz:
https://doaj.org/article/2b1457b4e7774ef79b792edf4d4b7843