Suchergebnisse - String and superstring theories in gravitational theory

Cosmic superstrings in large volume compactifications: PTAs, LISA and time-varying tension von Ghoshal, Anish, Revello, Filippo, Villa, Gonzalo

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Gravitational waves from cosmic superstrings and gauge strings von Marfatia, Danny, Zhou, Ye-Ling

“… A bstract We perform a phenomenological comparison of the gravitational wave (GW) spectrum expected from cosmic gauge string networks and superstring networks comprised of multiple string types …”
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Comparison of cosmic string and superstring models to NANOGrav 12.5-year results von Blanco-Pillado, Jose J., Olum, Ken D., Wachter, Jeremy M.

“… We compare the spectrum of the stochastic gravitational wave background produced in several models of cosmic strings with the common-spectrum process recently reported by NANOGrav …”
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Compton scattering from superstrings von Azevedo, Thales, Matamoros, Daniel E. A., Menezes, Gabriel

“… We consider the cases of electromagnetism and gravity. We obtain such amplitudes by calculating the corresponding ones from superstring theory involving states on the leading Regge trajectory …”
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The stochastic gravitational wave background from cosmic superstrings von Avgoustidis, Anastasios, Copeland, Edmund J., Moss, Adam, Raidal, Juhan

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Dynamical systems and superstring phases in the early universe von González, Noelia Sánchez, Conlon, Joseph P., Copeland, Edmund J., Hardy, Edward

“… A bstract We study the string theory dynamics of the volume scalar rolling down an exponential potential during the period between inflation and reheating, in a background of cosmic superstring loops …”
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Induced gravitational waves from flipped SU(5) superstring theory at nHz von Basilakos, Spyros, Nanopoulos, Dimitri V., Papanikolaou, Theodoros, Saridakis, Emmanuel N., Tzerefos, Charalampos

“… The no-scale flipped SU(5) superstring framework constitutes a very promising paradigm for physics below the Planck scale providing us with a very rich cosmological phenomenology in accordance with observations …”
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Cosmic superstrings, metastable strings and ultralight primordial black holes: from NANOGrav to LIGO and beyond von Datta, Satyabrata, Samanta, Rome

“… A bstract While topologically stable cosmic strings are disfavoured by the recent observation of nHz stochastic gravitational waves (GW …”
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Constraints on Tree-Level Higher Order Gravitational Couplings in Superstring Theory von Stieberger, Stephan

“… We consider the scattering amplitudes of five and six gravitons at tree level in superstring theory …”
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Analytic bootstrap bounds on masses and spins in gravitational and non-gravitational scalar theories von Berman, Justin, Geiser, Nicholas

“… A bstract We derive analytic constraints on the weakly-coupled spectrum of theories with a massless scalar under the standard assumptions of the S-matrix bootstrap program …”
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Gravitational waves in warped compactifications von Andriot, David, Tsimpis, Dimitrios

“… A bstract We study gravitational waves propagating on a warped Minkowski space-time with D …”
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On (scalar QED) gravitational positivity bounds von Hamada, Yuta, Kuramochi, Rinto, Loges, Gregory J., Nakajima, Sota

“… A bstract We study positivity bounds in the presence of gravity. We first review the gravitational positivity bound at the tree-level, where it is …”
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IR/UV mixing, towers of species and swampland conjectures von Castellano, Alberto, Herráez, Alvaro, Ibáñez, Luis E.

“… IR one obtains that the UV and IR cut-offs of the EFT are necessarily correlated. We argue that in a theory of Quantum Gravity (QG …”
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Toward simulating superstring/M-theory on a quantum computer von Gharibyan, Hrant, Hanada, Masanori, Honda, Masazumi, Liu, Junyu

“… Supersymmetric matrix models have natural applications to superstring/M-theory and gravitational physics, in an appropriate limit of parameters …”
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Gravitational couplings in N=2 string compactifications and Mathieu Moonshine von Chattopadhyaya, Aradhita, David, Justin R.

“… × E 8 string theory compactified on orbifolds of K 3 × T 2 by g ′ which acts as a ℤ …”
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The gravitational sector of 2d (0, 2) F-theory vacua von Lawrie, Craig, Schäfer-Nameki, Sakura, Weigand, Timo

“… Using our recent results on the gravitational anomalies of duality twisted D3-branes wrapping curves in Calabi-Yau fivefolds we show that the F-theory spectrum is anomaly free …”
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Preheating axions in string cosmology von Leedom, Jacob M., Putti, Margherita, Righi, Nicole, Westphal, Alexander

“… In this work, we study parametric resonance production of axions in string models of inflation …”
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PQ axiverse von Demirtas, Mehmet, Gendler, Naomi, Long, Cody, McAllister, Liam, Moritz, Jakob

“… A bstract We show that the strong CP problem is solved in a large class of compactifications of string theory …”
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Gravitational couplings in N = 2 heterotic compactifications with Wilson lines von Chattopadhyaya, Aradhita

“… A bstract In this paper we compute the gravitational couplings of the heterotic string compactified on ( K 3 × T 2 ) / ℤ N and E 8 …”
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Thraxions: towards full string models von Carta, Federico, Mininno, Alessandro, Righi, Nicole, Westphal, Alexander

“… A bstract We elucidate various aspects of the physics of thraxions, ultra-light axions arising at Klebanov-Strassler multi-throats in the compactification space of IIB superstring theory …”
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