Conversations and deliberations: Non-standard cosmological epochs and expansion histories

Brian Batell; Keith R. Dienes; Brooks Thomas; Scott Watson; Rouzbeh Allahverdi; Mustafa Amin; Kimberly K. Boddy; M. Sten Delos; Adrienne L. Erickcek; Akshay Ghalsasi; John T. Giblin; James Halverson; Fei Huang; Andrew J. Long; Lauren Pearce; Barmak Shams Es Haghi; Jessie Shelton; Gary Shiu; Kuver Sinha; Tristan L. Smith

doi:10.1142/S0217751X25300042

Conversations and deliberations: Non-standard cosmological epochs and expansion histories

Brian Batell, Keith R. Dienes, Brooks Thomas, Scott Watson, Rouzbeh Allahverdi, Mustafa Amin, Kimberly K. Boddy, M. Sten Delos, Adrienne L. Erickcek, Akshay Ghalsasi, John T. Giblin, James Halverson, Fei Huang, Andrew J. Long, Lauren Pearce, Barmak Shams Es Haghi, Jessie Shelton, Gary Shiu, Kuver Sinha, Tristan L. Smith

Research output: Contribution to journal › Review article › peer-review

1 Scopus citations

Abstract

This paper summarizes the discussions which took place during the PITT-PACC Workshop entitled "Non-Standard Cosmological Epochs and Expansion Histories,"held in Pittsburgh, Pennsylvania, Sept. 5-7, 2024. Much like the non-standard cosmological epochs that were the subject of these discussions, the format of this workshop was also non-standard. Rather than consisting of a series of talks from participants, with each person presenting their own work, this workshop was instead organized around free-form discussion blocks, with each centered on a different overall theme and guided by a different set of Discussion Leaders. This document is not intended to serve as a comprehensive review of these topics, but rather as an informal record of the discussions that took place during the workshop, in the hope that the content and free-flowing spirit of these discussions may inspire new ideas and research directions.

Original language	English (US)
Article number	2530004
Journal	International Journal of Modern Physics A
Volume	40
Issue number	17
DOIs	https://doi.org/10.1142/S0217751X25300042
State	Published - Jun 20 2025
Externally published	Yes

Keywords

Cosmology
modified expansion histories
non-standard cosmological epochs

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Astronomy and Astrophysics

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10.1142/S0217751X25300042

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Batell, B., Dienes, K. R., Thomas, B., Watson, S., Allahverdi, R., Amin, M., Boddy, K. K., Delos, M. S., Erickcek, A. L., Ghalsasi, A., Giblin, J. T., Halverson, J., Huang, F., Long, A. J., Pearce, L., Haghi, B. S. E., Shelton, J., Shiu, G., Sinha, K., & Smith, T. L. (2025). Conversations and deliberations: Non-standard cosmological epochs and expansion histories. International Journal of Modern Physics A, 40(17), Article 2530004. https://doi.org/10.1142/S0217751X25300042

Batell, B, Dienes, KR, Thomas, B, Watson, S, Allahverdi, R, Amin, M, Boddy, KK, Delos, MS, Erickcek, AL, Ghalsasi, A, Giblin, JT, Halverson, J, Huang, F, Long, AJ, Pearce, L, Haghi, BSE, Shelton, J, Shiu, G, Sinha, K & Smith, TL 2025, 'Conversations and deliberations: Non-standard cosmological epochs and expansion histories', International Journal of Modern Physics A, vol. 40, no. 17, 2530004. https://doi.org/10.1142/S0217751X25300042

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author = "Brian Batell and Dienes, {Keith R.} and Brooks Thomas and Scott Watson and Rouzbeh Allahverdi and Mustafa Amin and Boddy, {Kimberly K.} and Delos, {M. Sten} and Erickcek, {Adrienne L.} and Akshay Ghalsasi and Giblin, {John T.} and James Halverson and Fei Huang and Long, {Andrew J.} and Lauren Pearce and Haghi, {Barmak Shams Es} and Jessie Shelton and Gary Shiu and Kuver Sinha and Smith, {Tristan L.}",

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AU - Allahverdi, Rouzbeh

AU - Amin, Mustafa

AU - Boddy, Kimberly K.

AU - Delos, M. Sten

AU - Erickcek, Adrienne L.

AU - Ghalsasi, Akshay

AU - Giblin, John T.

AU - Halverson, James

AU - Huang, Fei

AU - Long, Andrew J.

AU - Pearce, Lauren

AU - Haghi, Barmak Shams Es

AU - Shelton, Jessie

AU - Shiu, Gary

AU - Sinha, Kuver

AU - Smith, Tristan L.

PY - 2025/6/20

Y1 - 2025/6/20

N2 - This paper summarizes the discussions which took place during the PITT-PACC Workshop entitled "Non-Standard Cosmological Epochs and Expansion Histories,"held in Pittsburgh, Pennsylvania, Sept. 5-7, 2024. Much like the non-standard cosmological epochs that were the subject of these discussions, the format of this workshop was also non-standard. Rather than consisting of a series of talks from participants, with each person presenting their own work, this workshop was instead organized around free-form discussion blocks, with each centered on a different overall theme and guided by a different set of Discussion Leaders. This document is not intended to serve as a comprehensive review of these topics, but rather as an informal record of the discussions that took place during the workshop, in the hope that the content and free-flowing spirit of these discussions may inspire new ideas and research directions.

AB - This paper summarizes the discussions which took place during the PITT-PACC Workshop entitled "Non-Standard Cosmological Epochs and Expansion Histories,"held in Pittsburgh, Pennsylvania, Sept. 5-7, 2024. Much like the non-standard cosmological epochs that were the subject of these discussions, the format of this workshop was also non-standard. Rather than consisting of a series of talks from participants, with each person presenting their own work, this workshop was instead organized around free-form discussion blocks, with each centered on a different overall theme and guided by a different set of Discussion Leaders. This document is not intended to serve as a comprehensive review of these topics, but rather as an informal record of the discussions that took place during the workshop, in the hope that the content and free-flowing spirit of these discussions may inspire new ideas and research directions.

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Conversations and deliberations: Non-standard cosmological epochs and expansion histories

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Keywords

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