Results 61 to 70 of about 110 (109)

De Sitter cosmology on an expanding bubble

Journal of High Energy Physics, 2019
Constructing an explicit compactification yielding a metastable de Sitter (dS) vacuum in a UV consistent string theory is an incredibly difficult open problem.
Souvik Banerjee, Ulf Danielsson, Giuseppe Dibitetto, Suvendu Giri, Marjorie Schillo   +4 more
doaj   +1 more source

Oscillons from string moduli

Journal of High Energy Physics, 2018
A generic feature of string compactifications is the presence of many scalar fields, called moduli. Moduli are usually displaced from their post-inflationary minimum during inflation.
Stefan Antusch, Francesco Cefalà, Sven Krippendorf, Francesco Muia, Stefano Orani, Fernando Quevedo   +5 more
doaj   +1 more source

Magnetic monopoles and free fractionally charged states at accelerators and in cosmic rays

Journal of High Energy Physics, 2017
Unified theories of strong, weak and electromagnetic interactions which have electric charge quantization predict the existence of topologically stable magnetic monopoles.
Thomas W. Kephart, George K. Leontaris, Qaisar Shafi   +2 more
doaj   +1 more source

Catalytic creation of baby bubble universe with small positive cosmological constant

Journal of High Energy Physics, 2019
We investigate the decay of metastable de Sitter, Minkowski and anti-de Sitter vacua catalyzed by a black hole and a cloud of strings. We apply the method to the creation of the four dimensional bubble universe in the five dimensional anti-de Sitter ...
Issei Koga, Yutaka Ookouchi
doaj   +1 more source

Moduli stars

Journal of High Energy Physics, 2018
We explore the possibility that (Bose-Einstein) condensation of scalar fields from string compactifications can lead to long-lived compact objects. Depending on the type of scalar fields we find different realisations of star-like and solitonic objects ...
Sven Krippendorf, Francesco Muia, Fernando Quevedo   +2 more
doaj   +1 more source

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source

Exploring non minimal Universal Extra Dimensional model at the LHC

Journal of High Energy Physics, 2018
We study the collider phenomenology of non minimal universal extra dimensional (nmUED) model in the context of the Large Hadron Collider at CERN. nmUED is an incarnation of the Standard Model in 4 + 1 space-time dimensions compactified on an S 1/Z 2 ...
Nabanita Ganguly, Anindya Datta
doaj   +1 more source

Towards new concepts for a biological neuroscience of consciousness. [PDF]

Cogn Neurodyn, 2021
Signorelli CM, Meling D.
europepmc   +1 more source

The shadow of dark matter as a shadow of string theory: string origin of the dipole term. [PDF]

Eur Phys J C Part Fields, 2020
Dick R.
europepmc   +1 more source

The QCD trace anomaly at strong coupling from M-theory. [PDF]

Eur Phys J C Part Fields, 2020
Misra A, Gale C.
europepmc   +1 more source