Results 41 to 50 of about 833,135 (278)

Global anomalies in 8d supergravity

Journal of High Energy Physics, 2022
We study gauge and gravitational anomalies of fermions and 2-form fields on eight-dimensional spin manifolds. Possible global gauge anomalies are classified by spin bordism groups Ω 9 spin BG $$ {\varOmega}_9^{\mathrm{spin}}(BG) $$ which we determine by ...
Yasunori Lee, Kazuya Yonekura
doaj   +1 more source

BPS solitons in Lifshitz field theories

, 2010
Lorentz-invariant scalar field theories in d+1 dimensions with second-order derivative terms are unable to support static soliton solutions that are both finite in energy and stable for d>2, a result known as Derrick's theorem.
A. M. Polyakov, Archil Kobakhidze, E. B. Bogomol’nyi, G. Parisi, Jayne E. Thompson, Raymond R. Volkas   +5 more
core   +1 more source

Proof of dispersion relations for the amplitude in theories with a compactified space dimension

Journal of High Energy Physics, 2020
The analyticity properties of the scattering amplitude in the nonforward direction are investigated for a field theory in the manifold R 3,1 ⨂ S 1.
Jnanadeva Maharana
doaj   +1 more source

Odd dimensional nonlocal Liouville conformal field theories

Journal of High Energy Physics, 2022
We construct Euclidean Liouville conformal field theories in odd number of dimensions. The theories are nonlocal and non-unitary with a log-correlated Liouville field, a Q $$ \mathcal{Q} $$ -curvature background, and an exponential Liouville-type ...
Amitay C. Kislev, Tom Levy, Yaron Oz
doaj   +1 more source

Nonperturbative bounds on scattering of massive scalar particles in d ≥ 2

Journal of High Energy Physics, 2022
We study two-to-two scattering amplitudes of a scalar particle of mass m. For simplicity, we assume the presence of ℤ2 symmetry and that the particle is ℤ2 odd.
Hongbin Chen, A. Liam Fitzpatrick, Denis Karateev   +2 more
doaj   +1 more source

Structure Constants for New Infinite-Dimensional Lie Algebras of U(N+,N-) Tensor Operators and Applications [PDF]

, 2000
The structure constants for Moyal brackets of an infinite basis of functions on the algebraic manifolds M of pseudo-unitary groups U(N_+,N_-) are provided. They generalize the Virasoro and W_\infty algebras to higher dimensions.
, Bayen F, Biedenharn L C, Biedenharn L C, Biedenharn L C, Calixto M, Connes A, Dirac P A M, Dirac P A M, Fairlie D B, Fradkin E S, Fulton W, Goddard P, Hoppe J, Hoppe J, Jacobson N, Jaramillo J L, Kac V G, Kac V G, Kirillov A A, M Calixto, Madore J, Moyal J E, Wolfram S   +23 more
core   +4 more sources

Exotic tensor gauge theory and duality [PDF]

, 2002
Gauge fields in exotic representations of the Lorentz group in D dimensions - i.e. ones which are tensors of mixed symmetry corresponding to Young tableaux with arbitrary numbers of rows and columns - naturally arise through massive string modes and in ...
de Medeiros, P., Hull, C.
core   +2 more sources

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Modular Hamiltonian of the scalar in the semi infinite line: dimensional reduction for spherically symmetric regions

Journal of High Energy Physics, 2023
We focus our attention on the one dimensional scalar theories that result from dimensionally reducing the free scalar field theory in arbitrary d dimensions.
Marina Huerta, Guido van der Velde
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source