Primordial Non-Gaussianity

P. Daniel Meerburg; Daniel Green; Muntazir Abidi; Mustafa A. Amin; Peter Adshead; Zeeshan Ahmed; David Alonso; Behzad Ansarinejad; Robert Armstrong; Santiago Avila; Carlo Baccigalupi; Tobias Baldauf; Mario Ballardini; Kevin Bandura; Nicola Bartolo; Nicholas Battaglia; Daniel Baumann; Chetan Bavdhankar; José Luis Bernal; Florian Beutler; Matteo Biagetti; Colin Bischoff; Jonathan Blazek; J. Richard Bond; Julian Borrill; François R. Bouchet; Philip Bull; Cliff Burgess; Christian Byrnes; Erminia Calabrese; John E. Carlstrom; Emanuele Castorina; Anthony Challinor; Tzu-Ching Chang; Jonas Chaves-Montero; Xingang Chen; Christophe Yeche; Asantha Cooray; William Coulton; Thomas Crawford; Elisa Chisari; Francis-Yan Cyr-Racine; Guido D'Amico; Paolo de Bernardis; Axel de la Macorra; Olivier Doré; Adri Duivenvoorden; Joanna Dunkley; Cora Dvorkin; Alexander Eggemeier; Stephanie Escoffier; Tom Essinger-Hileman; Matteo Fasiello; Simone Ferraro; Raphael Flauger; Andreu Font-Ribera; Simon Foreman; Oliver Friedrich; Juan Garcia-Bellido; Martina Gerbino; Vera Gluscevic; Garrett Goon; Krzysztof M. Gorski; Jon E. Gudmundsson; Nikhel Gupta; Shaul Hanany; Will Handley; Adam J. Hawken; J. Colin Hill; Christopher M. Hirata; Renée Hložek; Gilbert Holder; Dragan Huterer; Marc Kamionkowski; Kirit S. Karkare; Ryan E. Keeley; William Kinney; Theodore Kisner; Jean-Paul Kneib; Lloyd Knox; Savvas M. Koushiappas; Ely D. Kovetz; Kazuya Koyama; Benjamin L'Huillier; Ofer Lahav; Massimiliano Lattanzi; Hayden Lee; Michele Liguori; Marilena Loverde; Mathew Madhavacheril; Juan Maldacena; M. C. David Marsh; Kiyoshi Masui; Sabino Matarrese; Liam McAllister; Jeff McMahon; Matthew McQuinn; Joel Meyers; Mehrdad Mirbabayi; Azadeh Moradinezhad Dizgah; Pavel Motloch; Suvodip Mukherjee; Julian B. Muñoz; Adam D. Myers; Johanna Nagy; Pavel Naselsky; Federico Nati; Laura Newburgh; Alberto Nicolis; Michael D. Niemack; Gustavo Niz; Andrei Nomerotski; Lyman Page; Enrico Pajer; Hamsa Padmanabhan; Gonzalo A. Palma; Hiranya V. Peiris; Will J. Percival; Francesco Piacentni; Guilherme L. Pimentel; Levon Pogosian; Chanda Prescod-Weinstein; Clement Pryke; Giuseppe Puglisi; Benjamin Racine; Radek Stompor; Marco Raveri; Mathieu Remazeilles; Gracca Rocha; Ashley J. Ross; Graziano Rossi; John Ruhl; Misao Sasaki; Emmanuel Schaan; Alessandro Schillaci; Marcel Schmittfull; Neelima Sehgal; Leonardo Senatore; Hee-Jong Seo; Huanyuan Shan; Sarah Shandera; Blake D. Sherwin; Eva Silverstein; Sara Simon; Anže Slosar; Suzanne Staggs; Glenn Starkman; Albert Stebbins; Aritoki Suzuki; Eric R. Switzer; Peter Timbie; Andrew J. Tolley; Maurizio Tomasi; Matthieu Tristram; Mark Trodden; Yu-Dai Tsai; Cora Uhlemann; Caterina Umilta; Alexander van Engelen; M. Vargas-Magaña; Abigail Vieregg; Benjamin Wallisch; David Wands; Benjamin Wandelt; Yi Wang; Scott Watson; Mark Wise; W. L. K. Wu; Zhong-Zhi Xianyu; Weishuang Xu; Siavash Yasini; Sam Young; Duan Yutong; Matias Zaldarriaga; Michael Zemcov; Gong-Bo Zhao; Yi Zheng; Ningfeng Zhu

doi:10.48550/arXiv.1903.04409

Primordial Non-Gaussianity

P. Daniel Meerburg, Daniel Green, Muntazir Abidi, Mustafa A. Amin, Peter Adshead, Zeeshan Ahmed, David Alonso, Behzad Ansarinejad, Robert Armstrong, Santiago Avila, Carlo Baccigalupi, Tobias Baldauf, Mario Ballardini, Kevin Bandura, Nicola Bartolo, Nicholas Battaglia, Daniel Baumann, Chetan Bavdhankar, José Luis Bernal, Florian BeutlerMatteo Biagetti, Colin Bischoff, Jonathan Blazek, J. Richard Bond, Julian Borrill, François R. Bouchet, Philip Bull, Cliff Burgess, Christian Byrnes, Erminia Calabrese, John E. Carlstrom, Emanuele Castorina, Anthony Challinor, Tzu-Ching Chang, Jonas Chaves-Montero, Xingang Chen, Christophe Yeche, Asantha Cooray, William Coulton, Thomas Crawford, Elisa Chisari, Francis-Yan Cyr-Racine, Guido D'Amico, Paolo de Bernardis, Axel de la Macorra, Olivier Doré, Adri Duivenvoorden, Joanna Dunkley, Cora Dvorkin, Alexander Eggemeier, Stephanie Escoffier, Tom Essinger-Hileman, Matteo Fasiello, Simone Ferraro, Raphael Flauger, Andreu Font-Ribera, Simon Foreman, Oliver Friedrich, Juan Garcia-Bellido, Martina Gerbino, Vera Gluscevic, Garrett Goon, Krzysztof M. Gorski, Jon E. Gudmundsson, Nikhel Gupta, Shaul Hanany, Will Handley, Adam J. Hawken, J. Colin Hill, Christopher M. Hirata, Renée Hložek, Gilbert Holder, Dragan Huterer, Marc Kamionkowski, Kirit S. Karkare, Ryan E. Keeley, William Kinney, Theodore Kisner, Jean-Paul Kneib, Lloyd Knox, Savvas M. Koushiappas, Ely D. Kovetz, Kazuya Koyama, Benjamin L'Huillier, Ofer Lahav, Massimiliano Lattanzi, Hayden Lee, Michele Liguori, Marilena Loverde, Mathew Madhavacheril, Juan Maldacena, M. C. David Marsh, Kiyoshi Masui, Sabino Matarrese, Liam McAllister, Jeff McMahon, Matthew McQuinn, Joel Meyers, Mehrdad Mirbabayi, Azadeh Moradinezhad Dizgah, Pavel Motloch, Suvodip Mukherjee, Julian B. Muñoz, Adam D. Myers, Johanna Nagy, Pavel Naselsky, Federico Nati, Laura Newburgh, Alberto Nicolis, Michael D. Niemack, Gustavo Niz, Andrei Nomerotski, Lyman Page, Enrico Pajer, Hamsa Padmanabhan, Gonzalo A. Palma, Hiranya V. Peiris, Will J. Percival, Francesco Piacentni, Guilherme L. Pimentel, Levon Pogosian, Chanda Prescod-Weinstein, Clement Pryke, Giuseppe Puglisi, Benjamin Racine, Radek Stompor, Marco Raveri, Mathieu Remazeilles, Gracca Rocha, Ashley J. Ross, Graziano Rossi, John Ruhl, Misao Sasaki, Emmanuel Schaan, Alessandro Schillaci, Marcel Schmittfull, Neelima Sehgal, Leonardo Senatore, Hee-Jong Seo, Huanyuan Shan, Sarah Shandera, Blake D. Sherwin, Eva Silverstein, Sara Simon, Anže Slosar, Suzanne Staggs, Glenn Starkman, Albert Stebbins, Aritoki Suzuki, Eric R. Switzer, Peter Timbie, Andrew J. Tolley, Maurizio Tomasi, Matthieu Tristram, Mark Trodden, Yu-Dai Tsai, Cora Uhlemann, Caterina Umilta, Alexander van Engelen, M. Vargas-Magaña, Abigail Vieregg, Benjamin Wallisch, David Wands, Benjamin Wandelt, Yi Wang, Scott Watson, Mark Wise, W. L. K. Wu, Zhong-Zhi Xianyu, Weishuang Xu, Siavash Yasini, Sam Young, Duan Yutong, Matias Zaldarriaga, Michael Zemcov, Gong-Bo Zhao, Yi Zheng, Ningfeng Zhu

Research output: Working paper › Preprint › Academic

Abstract

Our current understanding of the Universe is established through the pristine measurements of structure in the cosmic microwave background (CMB) and the distribution and shapes of galaxies tracing the large scale structure (LSS) of the Universe. One key ingredient that underlies cosmological observables is that the field that sources the observed structure is assumed to be initially Gaussian with high precision. Nevertheless, a minimal deviation from Gaussianityis perhaps the most robust theoretical prediction of models that explain the observed Universe; itis necessarily present even in the simplest scenarios. In addition, most inflationary models produce far higher levels of non-Gaussianity. Since non-Gaussianity directly probes the dynamics in the early Universe, a detection would present a monumental discovery in cosmology, providing clues about physics at energy scales as high as the GUT scale.

Original language	English
DOIs	https://doi.org/10.48550/arXiv.1903.04409
Publication status	Submitted - 11-Mar-2019
Externally published	Yes

Keywords

astro-ph.CO
hep-th

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10.48550/arXiv.1903.04409

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Cite this

@techreport{7d197f976a35456fb5f878fcf2bc099c,

title = "Primordial Non-Gaussianity",

abstract = " Our current understanding of the Universe is established through the pristine measurements of structure in the cosmic microwave background (CMB) and the distribution and shapes of galaxies tracing the large scale structure (LSS) of the Universe. One key ingredient that underlies cosmological observables is that the field that sources the observed structure is assumed to be initially Gaussian with high precision. Nevertheless, a minimal deviation from Gaussianityis perhaps the most robust theoretical prediction of models that explain the observed Universe; itis necessarily present even in the simplest scenarios. In addition, most inflationary models produce far higher levels of non-Gaussianity. Since non-Gaussianity directly probes the dynamics in the early Universe, a detection would present a monumental discovery in cosmology, providing clues about physics at energy scales as high as the GUT scale. ",

keywords = "astro-ph.CO, hep-th",

author = "Meerburg, {P. Daniel} and Daniel Green and Muntazir Abidi and Amin, {Mustafa A.} and Peter Adshead and Zeeshan Ahmed and David Alonso and Behzad Ansarinejad and Robert Armstrong and Santiago Avila and Carlo Baccigalupi and Tobias Baldauf and Mario Ballardini and Kevin Bandura and Nicola Bartolo and Nicholas Battaglia and Daniel Baumann and Chetan Bavdhankar and Bernal, {Jos{\'e} Luis} and Florian Beutler and Matteo Biagetti and Colin Bischoff and Jonathan Blazek and Bond, {J. Richard} and Julian Borrill and Bouchet, {Fran{\c c}ois R.} and Philip Bull and Cliff Burgess and Christian Byrnes and Erminia Calabrese and Carlstrom, {John E.} and Emanuele Castorina and Anthony Challinor and Tzu-Ching Chang and Jonas Chaves-Montero and Xingang Chen and Christophe Yeche and Asantha Cooray and William Coulton and Thomas Crawford and Elisa Chisari and Francis-Yan Cyr-Racine and Guido D'Amico and Bernardis, {Paolo de} and Macorra, {Axel de la} and Olivier Dor{\'e} and Adri Duivenvoorden and Joanna Dunkley and Cora Dvorkin and Alexander Eggemeier and Stephanie Escoffier and Tom Essinger-Hileman and Matteo Fasiello and Simone Ferraro and Raphael Flauger and Andreu Font-Ribera and Simon Foreman and Oliver Friedrich and Juan Garcia-Bellido and Martina Gerbino and Vera Gluscevic and Garrett Goon and Gorski, {Krzysztof M.} and Gudmundsson, {Jon E.} and Nikhel Gupta and Shaul Hanany and Will Handley and Hawken, {Adam J.} and Hill, {J. Colin} and Hirata, {Christopher M.} and Ren{\'e}e Hlo{\v z}ek and Gilbert Holder and Dragan Huterer and Marc Kamionkowski and Karkare, {Kirit S.} and Keeley, {Ryan E.} and William Kinney and Theodore Kisner and Jean-Paul Kneib and Lloyd Knox and Koushiappas, {Savvas M.} and Kovetz, {Ely D.} and Kazuya Koyama and Benjamin L'Huillier and Ofer Lahav and Massimiliano Lattanzi and Hayden Lee and Michele Liguori and Marilena Loverde and Mathew Madhavacheril and Juan Maldacena and Marsh, {M. C. David} and Kiyoshi Masui and Sabino Matarrese and Liam McAllister and Jeff McMahon and Matthew McQuinn and Joel Meyers and Mehrdad Mirbabayi and Dizgah, {Azadeh Moradinezhad} and Pavel Motloch and Suvodip Mukherjee and Mu{\~n}oz, {Julian B.} and Myers, {Adam D.} and Johanna Nagy and Pavel Naselsky and Federico Nati and Laura Newburgh and Alberto Nicolis and Niemack, {Michael D.} and Gustavo Niz and Andrei Nomerotski and Lyman Page and Enrico Pajer and Hamsa Padmanabhan and Palma, {Gonzalo A.} and Peiris, {Hiranya V.} and Percival, {Will J.} and Francesco Piacentni and Pimentel, {Guilherme L.} and Levon Pogosian and Chanda Prescod-Weinstein and Clement Pryke and Giuseppe Puglisi and Benjamin Racine and Radek Stompor and Marco Raveri and Mathieu Remazeilles and Gracca Rocha and Ross, {Ashley J.} and Graziano Rossi and John Ruhl and Misao Sasaki and Emmanuel Schaan and Alessandro Schillaci and Marcel Schmittfull and Neelima Sehgal and Leonardo Senatore and Hee-Jong Seo and Huanyuan Shan and Sarah Shandera and Sherwin, {Blake D.} and Eva Silverstein and Sara Simon and An{\v z}e Slosar and Suzanne Staggs and Glenn Starkman and Albert Stebbins and Aritoki Suzuki and Switzer, {Eric R.} and Peter Timbie and Tolley, {Andrew J.} and Maurizio Tomasi and Matthieu Tristram and Mark Trodden and Yu-Dai Tsai and Cora Uhlemann and Caterina Umilta and Engelen, {Alexander van} and M. Vargas-Maga{\~n}a and Abigail Vieregg and Benjamin Wallisch and David Wands and Benjamin Wandelt and Yi Wang and Scott Watson and Mark Wise and Wu, {W. L. K.} and Zhong-Zhi Xianyu and Weishuang Xu and Siavash Yasini and Sam Young and Duan Yutong and Matias Zaldarriaga and Michael Zemcov and Gong-Bo Zhao and Yi Zheng and Ningfeng Zhu",

note = "5 pages + references; Submitted to the Astro2020 call for science white papers. This version: fixed author list",

year = "2019",

month = mar,

day = "11",

doi = "10.48550/arXiv.1903.04409",

language = "English",

type = "WorkingPaper",

}

Meerburg, PD, Green, D, Abidi, M, Amin, MA, Adshead, P, Ahmed, Z, Alonso, D, Ansarinejad, B, Armstrong, R, Avila, S, Baccigalupi, C, Baldauf, T, Ballardini, M, Bandura, K, Bartolo, N, Battaglia, N, Baumann, D, Bavdhankar, C, Bernal, JL, Beutler, F, Biagetti, M, Bischoff, C, Blazek, J, Bond, JR, Borrill, J, Bouchet, FR, Bull, P, Burgess, C, Byrnes, C, Calabrese, E, Carlstrom, JE, Castorina, E, Challinor, A, Chang, T-C, Chaves-Montero, J, Chen, X, Yeche, C, Cooray, A, Coulton, W, Crawford, T, Chisari, E, Cyr-Racine, F-Y, D'Amico, G, Bernardis, PD, Macorra, ADL, Doré, O, Duivenvoorden, A, Dunkley, J, Dvorkin, C, Eggemeier, A, Escoffier, S, Essinger-Hileman, T, Fasiello, M, Ferraro, S, Flauger, R, Font-Ribera, A, Foreman, S, Friedrich, O, Garcia-Bellido, J, Gerbino, M, Gluscevic, V, Goon, G, Gorski, KM, Gudmundsson, JE, Gupta, N, Hanany, S, Handley, W, Hawken, AJ, Hill, JC, Hirata, CM, Hložek, R, Holder, G, Huterer, D, Kamionkowski, M, Karkare, KS, Keeley, RE, Kinney, W, Kisner, T, Kneib, J-P, Knox, L, Koushiappas, SM, Kovetz, ED, Koyama, K, L'Huillier, B, Lahav, O, Lattanzi, M, Lee, H, Liguori, M, Loverde, M, Madhavacheril, M, Maldacena, J, Marsh, MCD, Masui, K, Matarrese, S, McAllister, L, McMahon, J, McQuinn, M, Meyers, J, Mirbabayi, M, Dizgah, AM, Motloch, P, Mukherjee, S, Muñoz, JB, Myers, AD, Nagy, J, Naselsky, P, Nati, F, Newburgh, L, Nicolis, A, Niemack, MD, Niz, G, Nomerotski, A, Page, L, Pajer, E, Padmanabhan, H, Palma, GA, Peiris, HV, Percival, WJ, Piacentni, F, Pimentel, GL, Pogosian, L, Prescod-Weinstein, C, Pryke, C, Puglisi, G, Racine, B, Stompor, R, Raveri, M, Remazeilles, M, Rocha, G, Ross, AJ, Rossi, G, Ruhl, J, Sasaki, M, Schaan, E, Schillaci, A, Schmittfull, M, Sehgal, N, Senatore, L, Seo, H-J, Shan, H, Shandera, S, Sherwin, BD, Silverstein, E, Simon, S, Slosar, A, Staggs, S, Starkman, G, Stebbins, A, Suzuki, A, Switzer, ER, Timbie, P, Tolley, AJ, Tomasi, M, Tristram, M, Trodden, M, Tsai, Y-D, Uhlemann, C, Umilta, C, Engelen, AV, Vargas-Magaña, M, Vieregg, A, Wallisch, B, Wands, D, Wandelt, B, Wang, Y, Watson, S, Wise, M, Wu, WLK, Xianyu, Z-Z, Xu, W, Yasini, S, Young, S, Yutong, D, Zaldarriaga, M, Zemcov, M, Zhao, G-B, Zheng, Y & Zhu, N 2019 'Primordial Non-Gaussianity'. https://doi.org/10.48550/arXiv.1903.04409

TY - UNPB

T1 - Primordial Non-Gaussianity

AU - Meerburg, P. Daniel

AU - Green, Daniel

AU - Abidi, Muntazir

AU - Amin, Mustafa A.

AU - Adshead, Peter

AU - Ahmed, Zeeshan

AU - Alonso, David

AU - Ansarinejad, Behzad

AU - Armstrong, Robert

AU - Avila, Santiago

AU - Baccigalupi, Carlo

AU - Baldauf, Tobias

AU - Ballardini, Mario

AU - Bandura, Kevin

AU - Bartolo, Nicola

AU - Battaglia, Nicholas

AU - Baumann, Daniel

AU - Bavdhankar, Chetan

AU - Bernal, José Luis

AU - Beutler, Florian

AU - Biagetti, Matteo

AU - Bischoff, Colin

AU - Blazek, Jonathan

AU - Bond, J. Richard

AU - Borrill, Julian

AU - Bouchet, François R.

AU - Bull, Philip

AU - Burgess, Cliff

AU - Byrnes, Christian

AU - Calabrese, Erminia

AU - Carlstrom, John E.

AU - Castorina, Emanuele

AU - Challinor, Anthony

AU - Chang, Tzu-Ching

AU - Chaves-Montero, Jonas

AU - Chen, Xingang

AU - Yeche, Christophe

AU - Cooray, Asantha

AU - Coulton, William

AU - Crawford, Thomas

AU - Chisari, Elisa

AU - Cyr-Racine, Francis-Yan

AU - D'Amico, Guido

AU - Bernardis, Paolo de

AU - Macorra, Axel de la

AU - Doré, Olivier

AU - Duivenvoorden, Adri

AU - Dunkley, Joanna

AU - Dvorkin, Cora

AU - Eggemeier, Alexander

AU - Escoffier, Stephanie

AU - Essinger-Hileman, Tom

AU - Fasiello, Matteo

AU - Ferraro, Simone

AU - Flauger, Raphael

AU - Font-Ribera, Andreu

AU - Foreman, Simon

AU - Friedrich, Oliver

AU - Garcia-Bellido, Juan

AU - Gerbino, Martina

AU - Gluscevic, Vera

AU - Goon, Garrett

AU - Gorski, Krzysztof M.

AU - Gudmundsson, Jon E.

AU - Gupta, Nikhel

AU - Hanany, Shaul

AU - Handley, Will

AU - Hawken, Adam J.

AU - Hill, J. Colin

AU - Hirata, Christopher M.

AU - Hložek, Renée

AU - Holder, Gilbert

AU - Huterer, Dragan

AU - Kamionkowski, Marc

AU - Karkare, Kirit S.

AU - Keeley, Ryan E.

AU - Kinney, William

AU - Kisner, Theodore

AU - Kneib, Jean-Paul

AU - Knox, Lloyd

AU - Koushiappas, Savvas M.

AU - Kovetz, Ely D.

AU - Koyama, Kazuya

AU - L'Huillier, Benjamin

AU - Lahav, Ofer

AU - Lattanzi, Massimiliano

AU - Lee, Hayden

AU - Liguori, Michele

AU - Loverde, Marilena

AU - Madhavacheril, Mathew

AU - Maldacena, Juan

AU - Marsh, M. C. David

AU - Masui, Kiyoshi

AU - Matarrese, Sabino

AU - McAllister, Liam

AU - McMahon, Jeff

AU - McQuinn, Matthew

AU - Meyers, Joel

AU - Mirbabayi, Mehrdad

AU - Dizgah, Azadeh Moradinezhad

AU - Motloch, Pavel

AU - Mukherjee, Suvodip

AU - Muñoz, Julian B.

AU - Myers, Adam D.

AU - Nagy, Johanna

AU - Naselsky, Pavel

AU - Nati, Federico

AU - Newburgh, Laura

AU - Nicolis, Alberto

AU - Niemack, Michael D.

AU - Niz, Gustavo

AU - Nomerotski, Andrei

AU - Page, Lyman

AU - Pajer, Enrico

AU - Padmanabhan, Hamsa

AU - Palma, Gonzalo A.

AU - Peiris, Hiranya V.

AU - Percival, Will J.

AU - Piacentni, Francesco

AU - Pimentel, Guilherme L.

AU - Pogosian, Levon

AU - Prescod-Weinstein, Chanda

AU - Pryke, Clement

AU - Puglisi, Giuseppe

AU - Racine, Benjamin

AU - Stompor, Radek

AU - Raveri, Marco

AU - Remazeilles, Mathieu

AU - Rocha, Gracca

AU - Ross, Ashley J.

AU - Rossi, Graziano

AU - Ruhl, John

AU - Sasaki, Misao

AU - Schaan, Emmanuel

AU - Schillaci, Alessandro

AU - Schmittfull, Marcel

AU - Sehgal, Neelima

AU - Senatore, Leonardo

AU - Seo, Hee-Jong

AU - Shan, Huanyuan

AU - Shandera, Sarah

AU - Sherwin, Blake D.

AU - Silverstein, Eva

AU - Simon, Sara

AU - Slosar, Anže

AU - Staggs, Suzanne

AU - Starkman, Glenn

AU - Stebbins, Albert

AU - Suzuki, Aritoki

AU - Switzer, Eric R.

AU - Timbie, Peter

AU - Tolley, Andrew J.

AU - Tomasi, Maurizio

AU - Tristram, Matthieu

AU - Trodden, Mark

AU - Tsai, Yu-Dai

AU - Uhlemann, Cora

AU - Umilta, Caterina

AU - Engelen, Alexander van

AU - Vargas-Magaña, M.

AU - Vieregg, Abigail

AU - Wallisch, Benjamin

AU - Wands, David

AU - Wandelt, Benjamin

AU - Wang, Yi

AU - Watson, Scott

AU - Wise, Mark

AU - Wu, W. L. K.

AU - Xianyu, Zhong-Zhi

AU - Xu, Weishuang

AU - Yasini, Siavash

AU - Young, Sam

AU - Yutong, Duan

AU - Zaldarriaga, Matias

AU - Zemcov, Michael

AU - Zhao, Gong-Bo

AU - Zheng, Yi

AU - Zhu, Ningfeng

N1 - 5 pages + references; Submitted to the Astro2020 call for science white papers. This version: fixed author list

PY - 2019/3/11

Y1 - 2019/3/11

N2 - Our current understanding of the Universe is established through the pristine measurements of structure in the cosmic microwave background (CMB) and the distribution and shapes of galaxies tracing the large scale structure (LSS) of the Universe. One key ingredient that underlies cosmological observables is that the field that sources the observed structure is assumed to be initially Gaussian with high precision. Nevertheless, a minimal deviation from Gaussianityis perhaps the most robust theoretical prediction of models that explain the observed Universe; itis necessarily present even in the simplest scenarios. In addition, most inflationary models produce far higher levels of non-Gaussianity. Since non-Gaussianity directly probes the dynamics in the early Universe, a detection would present a monumental discovery in cosmology, providing clues about physics at energy scales as high as the GUT scale.

AB - Our current understanding of the Universe is established through the pristine measurements of structure in the cosmic microwave background (CMB) and the distribution and shapes of galaxies tracing the large scale structure (LSS) of the Universe. One key ingredient that underlies cosmological observables is that the field that sources the observed structure is assumed to be initially Gaussian with high precision. Nevertheless, a minimal deviation from Gaussianityis perhaps the most robust theoretical prediction of models that explain the observed Universe; itis necessarily present even in the simplest scenarios. In addition, most inflationary models produce far higher levels of non-Gaussianity. Since non-Gaussianity directly probes the dynamics in the early Universe, a detection would present a monumental discovery in cosmology, providing clues about physics at energy scales as high as the GUT scale.

KW - astro-ph.CO

KW - hep-th

U2 - 10.48550/arXiv.1903.04409

DO - 10.48550/arXiv.1903.04409

M3 - Preprint

BT - Primordial Non-Gaussianity

ER -

Primordial Non-Gaussianity

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