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PPC 2021: XIV International Workshop on Interconnections between Particle Physics and Cosmology

17–21 May 2021
University of Oklahoma
US/Central timezone

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Session

Strings/Formal 2

20 May 2021, 16:00

Conveners

Strings/Formal 2

  • Jason Kumar

Presentation materials

There are no materials yet.

  1. 103. Superheavy Dark Matter from String Theory
    Rouzbeh Allahverdi (University of New Mexico)
    20/05/2021, 16:00
    Cosmology

    I argue that generic features of string compactifications, namely a high scale of supersymmetry breaking and one or more epochs of modulus domination, can accommodate superheavy neutralino dark matter with a mass around 10^10−10^11 GeV. Interestingly, this mass range may also explain the recent detection of ultra-high-energy neutrinos by IceCube and ANITA via dark matter decay.

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  2. 150. The Price of Curiosity: Information Recovery in de Sitter Space
    Lars Aalsma
    20/05/2021, 16:15
    Cosmology

    Recent works have revealed that the fine-grained entropy of a non-gravitating subsystem, when entangled with a gravitating region, can receive contributions from so-called quantum extremal islands. Applied to black holes, this reproduces the unitary Page curve for Hawking radiation. In this talk, I will show how these results can be applied to the thermal radiation measured by a static...

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  3. 193. The Standard Model Quiver from Singular de Sitter String Compactifications
    Andreas Schachner (Cambridge University)
    20/05/2021, 16:30
    String Phenomenology

    With the advent of the string landscape, the realisation of the Standard Model in general string theory compactifications to 4D has become a primary focus. This talk concerns novel constructions of the Standard Model in global set-ups of type IIB Calabi-Yau compactifications. We argue that the Standard Model quiver can be embedded into Calabi-Yau threefolds through orientifolded D3 branes at...

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  4. 99. Swampland conjectures and single field inflation in modified cosmological scenarios
    Oem Trivedi (Ahmedabad University)
    20/05/2021, 16:45
    Cosmology

    Swampland Conjectures have attracted quite some interest in the Cosmological Community. They have been shown to have wide ranging implications , like Constraints on Inflationary Models, Primordial Black Holes, Dark Energy to name a few. Particularly, their implications on Single Field Inflationary Models in General Relativity Based Cosmology has gathered huge attention. Swampland Conjectures...

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  5. 263. Lorentz Invariance from Locality of Massless Spin 2
    Jacob Litterer (Tufts University)
    20/05/2021, 17:00

    It is known that local, Lorentz invariant, unitary theories involving particles with spin 1 demand
    that the matter sector they couple to are organized by internal physical symmetries and the as-
    sociated charge conservation, while spin 3/2 demands supersymmetry. However, the introduction
    of a spin 2 graviton does not obviously demand new symmetries of the matter sector (although it
    does...

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