Higuchi bound
WebJun 1, 1988 · In this brief note we consider the interaction between high spin excitations in string theory along the Regge trajectory and the Higuchi bound in de Sitter space. There is … WebSep 23, 2016 · The International School for Advanced Studies (SISSA) was founded in 1978 and was the first institution in Italy to promote post-graduate courses leading to a Doctor …
Higuchi bound
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WebThe existence of light particles with spin during inflation is prohibited by the Higuchi bound. This conclusion can be evaded if one considers states with a sizeable coupling with the inflaton ... WebOct 9, 2024 · The existence of light particles with spin during inflation is prohibited by the Higuchi bound. This conclusion can be evaded if one considers states with a sizeable coupling with the inflaton foliation, since this breaks the de Sitter isometries. The action for these states can be constructed within the Effective Field Theory of Inflation, or ...
WebThe value of mg is precisely the Spin-2 gauge line appearing on the Λ - m 2 g phase diagram for Spin-2, the partially massless gauge lines introduced by Deser & Waldron in the m 2 g, Λ) phase plane and described as the Higuchi bound m 2 g = 2 Λ /3. Note that this graviton is unitary with only four polarization degrees of freedom (helicities ... WebSep 1, 2016 · @article{osti_22679453, title = {Tensor squeezed limits and the Higuchi bound}, author = {Bordin, Lorenzo and Creminelli, Paolo and Mirbabayi, Mehrdad and Noreña, Jorge}, abstractNote = {We point out that tensor consistency relations—i.e. the behavior of primordial correlation functions in the limit a tensor mode has a small momentum—are …
WebMar 12, 2024 · In this letter we show that the Higuchi bound can be circumvented in an alternative description of massive spin-2 particles known as $\mathcal {L} (a_1)$ models. In maximally symmetric spaces the... WebJan 31, 2024 · In particular it ensures that the Higuchi bound is satisfied at all scales, that no Vainshtein mechanism is needed to satisfy Solar System experiments, and that the strong coupling scale is always above the scale of cosmological interest all …
WebIn this brief note we consider the interaction between high spin excitations in string theory along the Regge trajectory and the Higuchi bound in de Sitter space. There is always a …
WebL Académie Alice Tome 22 By Tachibana Higuchi L Académie Alice Tome 22 By Tachibana Higuchi Voici une vido d un atelier dans ma salle qui. Diario de la marina UFDC Home. UNADEV TV Handicap visuel faire de notre diversit une. journes nationales microondes Topics by Science gov. sanitaire des isotopes Topics by Science gov. Diario de la terry norris boxer wikiWebMar 12, 2024 · In this letter we show that the Higuchi bound can be circumvented in an alternative description of massive spin-2 particles known as $\mathcal {L} (a_1)$ models. … terry norris vs meldrick taylorWebThis inequality, called Higuchi bound [6], is a consequence of the (approximate) de Sitter symmetries during in ation. It implies that particles with spin decay outside the horizon faster than 1=a, where ais the scale factor. This implies that they leave a small e ect in the squeezed limit of correlation functions. terry norris cop shopWebMar 1, 2024 · Our interesting observation is the abrupt behavior of the system just when the theory touches the Higuchi bound [17], where the constraint structure of the system has a completely different character. Exactly at the Higuchi bound, one chain of constraints with four second class elements changes to a first class chain with three elements. terry norrisWebsquared against spin. The quadratic red line is the Higuchi bound, while the linear blue line is the string Regge trajec-tory. At the crossing point the Higuchi bound is violated, and so if the perturbative string is to be consistent on such a background the Higuchi analysis must break down at a scale. bound (1) scales quadratically with the ... terry norton actorWebAug 4, 2024 · We discuss the conditions to satisfy the Higuchi bound and to avoid gradient instabilities in the scalar sector for cosmological solutions in singly coupled bimetric … trilby tour 2023WebJul 4, 2024 · Interestingly, as a consequence of accelerated expansion, there exists a maximum spin for each Regge trajectory, which is helpful to make the spectrum consistent with the Higuchi bound, but at the same time, it could be an obstruction to stringy UV completion based on an infinite higher-spin tower. terry norton vrbo