Results 61 to 70 of about 4,563 (184)

On Gauge‐Invariant Entire Function Regulators and UV Finiteness in Non Local Quantum Field Theory

open access: yesAnnalen der Physik, Volume 538, Issue 4, April 2026.
We regulate the theory with an entire function of the covariant operator F(□/M∗2)$F(\square /M^{2}_{*})$. In the perturbative vacuum this becomes a momentum‐space factor F(−p2/M∗2)$F(-p^{2}/M^{2}_{*})$ that exponentially damps high momenta, most transparent after Wick rotation, rendering loop integrals UV finite.
J. W. Moffat, E. J. Thompson
wiley   +1 more source

Consistency of Higgsplosion in localizable QFT

open access: yesPhysics Letters B, 2019
We show that large n-particle production rates derived in the semiclassical Higgsplosion limit of scalar field theoretical models with spontaneous symmetry breaking, are consistent with general principles of localizable quantum field theory. The strict localizability criterium of Jaffe defines quantum fields as operator-valued distributions acting on ...
Valentin V. Khoze, Michael Spannowsky
openaire   +5 more sources

Coupling a QFT to a TQFT and duality [PDF]

open access: yesJournal of High Energy Physics, 2014
53 pages, harvmac.
Kapustin, Anton, Seiberg, Nathan
openaire   +3 more sources

Discordance of 3rd and 4th generation QuantiFERON-TB Gold assays by pregnancy stages in India

open access: yesJournal of Clinical Tuberculosis and Other Mycobacterial Diseases
Background: Pregnancy and HIV affect CD4+ T lymphocytes and impact performance of QuantiFERON-TB Gold (QFT). We compared the results of QFT with QuantiFERON-TB Gold Plus (QFT-Plus), which also measures CD8+ responses to TB antigens, during pregnancy and ...
Vandana Kulkarni   +12 more
doaj   +1 more source

Reversions of QuantiFERON-TB Gold Plus in tuberculosis contact investigation: A prospective multicentre cohort study

open access: yesPLoS ONE, 2023
Background Interferon-y Release Assays (IGRA) reversions have been reported in different clinical scenarios for the diagnosis of tuberculosis (TB) infection.
Sandra Pérez-Recio   +19 more
doaj  

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Symmetries in QFT

open access: yes, 2003
This document contains notes from the graduate lecture course, "Symmetries in QFT" given by J.F.Wheater at Oxford University in Hilary term. The course gives an informal introduction to QFT.
Hamilton, K, Wheater, J
openaire   +3 more sources

Nonstandard Bethe Ansatz equations for open O(N) spin chains

open access: yesNuclear Physics B, 2018
The double row transfer matrix of the open O(N) spin chain is diagonalized and the Bethe Ansatz equations are also derived by the algebraic Bethe Ansatz method including the so far missing case when the residual symmetry is O(2M+1)×O(2N−2M−1).
Tamás Gombor
doaj   +1 more source

Impact of Quantum Gravity on the UV Sensitivity of Extremal Black Holes

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
ABSTRACT Recent work has revealed that extremal Kerr black holes may exhibit a sensitivity to higher‐derivative corrections to Einstein's equations, displaying singularities in the tidal forces at the horizon. However, in a purely gravitational context, this “ultraviolet sensitivity” translates into a strong dependence on the Wilson coefficients in the
Francesco Del Porro   +2 more
wiley   +1 more source

Thermal States in Conformal QFT. II [PDF]

open access: yesCommunications in Mathematical Physics, 2011
36 pages, no figure. Dedicated to Rudolf Haag on the occasion of his 90th birthday. The final version is available under Open Access. This paper contains corrections to the Araki-Haag-Kaster-Takesaki theorem (and to a proof of the same theorem in the book by Bratteli-Robinson).
Camassa   +7 more
openaire   +9 more sources

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