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Inflation and Dark Energy from spectroscopy at $$\mathcal{z} > 2$$

Journal Article · · Bulletin of the American Astronomical Society
OSTI ID:1771952
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  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Univ. of Cambridge (United Kingdom)
  3. Univ. of Oxford (United Kingdom)
  4. Durham Univ. Lower Mountjoy (United Kingdom)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Korea Astronomy and Space Science Inst., Daejeon (Korea)
  7. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  8. Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste (Italy); Inst. for Fundamental Physics of the Universe (IFPU), Trieste (Italy); National Inst. for Nuclear Physics (INFN), Trieste (Italy)
  9. West Virginia Univ., Morgantown, WV (United States)
  10. Cornell Univ., Ithaca, NY (United States)
  11. National Center for Nuclear Research, Warsaw (Poland)
  12. Univ. of Barcelona (Spain); Universitat de Barcelona (Spain)
  13. Univ. of Portsmouth (United Kingdom)
  14. Univ. of Amsterdam (Netherlands)
  15. The Observatories of the Carnegie Inst. for Science, Pasadena, CA (United States)
  16. Ecole Polytechnique Federale Lausanne (Switzerland); The Ohio State Univ., Columbus, OH (United States)
  17. National Optical Astronomy Observatory, Tucson, AZ (United States)
  18. Univ. of Arizona, Tucson, AZ (United States)
  19. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  20. Queen Mary Univ. of London (United Kingdom)
  21. Perimeter Inst., Waterloo, ON (Canada)
  22. Univ. of Sussex, Brighton (United Kingdom)
  23. Univ. of California, Santa Cruz, CA (United States)
  24. Inst. of Space Sciences, Barcelona (Spain)
  25. Univ. of California, Berkeley, CA (United States)
  26. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  27. Argonne National Lab. (ANL), Argonne, IL (United States)
  28. Sorbonne Univ., Paris (France)
  29. Univ. Paris-Saclay, Gif-sur-Yvette (France)
  30. Univ. of Cambridge (United Kingdom); Kavli Inst. for Cosmology, Cambridge (United Kingdom)
  31. Universite de Lyon (France)
  32. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  33. Harvard Univ., Cambridge, MA (United States); Univ. of New Mexico, Albuquerque, NM (United States)
  34. Stanford Univ., CA (United States)
  35. Univ. of Utah, Salt Lake City, UT (United States)
  36. Universite Paris Diderot (France); Alternative Energies and Atomic Energy Commission (CEA), Saclay (France)
  37. Univ. of Rochester, NY (United States)
  38. Boston Univ., MA (United States)
  39. Harvard Univ., Cambridge, MA (United States)
  40. Univ. College London (United Kingdom)
  41. Univ. of Toronto, ON (Canada)
  42. Universidad Autonoma de Madrid (Spain)
  43. Univ. of Florida, Gainesville, FL (United States)
  44. Univ. of California, San Diego, La Jolla CA (United States)
  45. Univ. of Minnesota, Minneapolis, MN (United States)
  46. Kavli Inst. for Cosmology, Cambridge (United Kingdom); Univ. of Cambridge (United Kingdom). Cavendish Lab.
  47. Space Telescope Science Inst., Baltimore, MD (United States)
  48. Aix-Marseille Univ., Marseille (France)
  49. Durham Univ. (United Kingdom)
  50. Univ. of Michigan, Ann Arbor, MI (United States)
  51. Univ. of Texas at Dallas, Richardson, TX (United States)
  52. Johns Hopkins Univ., Baltimore, MD (United States)
  53. Universita degli Studi di Padova (Italy)
  54. Southern Methodist Univ., Dallas, TX (United States)
  55. Tata Inst. of Fundamental Research, Bombay (India)
  56. Ecole Polytechnique Federale Lausanne (Switzerland)
  57. Ben-Gurion Univ., Be’er Sheva (Israel)
  58. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  59. Universidad Nacional Autonoma de Metico (Mexico)
  60. Princeton Univ., NJ (United States)
  61. Texas A & M Univ., College Station, TX (United States)
  62. The Ohio State Univ., Columbus, OH (United States)
  63. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  64. Kavli Inst. for Cosmology, Cambridge (United Kingdom); Univ. of Cambridge (United Kingdom); Univ. of Groningen (Netherlands)
  65. International Centre for Theoretical Physics, Trieste (Italy)
  66. Siena College, Loudonville, NY (United States)
  67. Univ. of Wyoming, Laramie, WY (United States)
  68. Yale Univ., New Haven, CT (United States)
  69. Univ. of Pittsburgh, PA (United States)
  70. Universidad de Guanajuato, Leon (Mexico)
  71. Univ. of Toronto, ON (Canada); Eidgenoessische Technische Hochschule, Zurich (Switzerland)
  72. Univ. of Waterloo, ON (Canada); Perimeter Inst., Waterloo, ON (Canada)
  73. Universita La Sapienza, Roma (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Roma (Italy)
  74. California Institute of Technology (CalTech), Pasadena, CA (United States)
  75. Sejong Univ., Seoul (Korea)
  76. Kansas State Univ., Manhattan, KS (United States)
  77. Univ. of Tokyo (Japan)
  78. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  79. Inst. for Advanced Study, Princeton, NJ (United States)
  80. Stony Brook Univ., NY (United States)
  81. Kavli Inst. for Particle Astrophysics and Cosmology, Stanford, CA (United States)
  82. Ohio Univ., Athens, OH (United States)
  83. Shanghai Astronomical Observatory (SHAO), Shanghai (China)
  84. Univ. of Florida, Gainesville, FL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  85. Brookhaven National Lab. (BNL), Upton, NY (United States)
  86. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  87. Univ. of Pennsylvania, Philadelphia, PA (United States)
  88. Univ. of Manchester (United Kingdom)
  89. The Hong Kong Univ. of Science and Technology, Hong Kong SAR (China)
  90. Syracuse Univ., NY (United States)
  91. Univ. of Portsmouth (United Kingdom); Chinese Academy of Sciences (CAS) (China). National Astronomical Observatories
  92. Korea Inst. for Advanced Study, Seoul (Korea)
+ Show Author Affiliations
The expansion of the Universe is understood to have accelerated during two epochs: in its very first moments during a period of Inflation and much more recently, at $$\mathcal{z} < 1$$, when Dark Energy is hypothesized to drive cosmic acceleration. The undiscovered mechanisms behind these two epochs represent some of the most important open problems in fundamental physics. Most of the processes involved during Inflation impact observations on the very largest spatial scales. Traditionally, these have been accessed through observations of the Cosmic Microwave Background (CMB). While very powerful, the CMB originates from a 2D surface and the finite number of modes that it contains will largely be measured by experiments over the next decade. Observations of large 3D volumes with large-scale structure (LSS) access similar scales and will dramatically increase the number of available modes. For example, LSS observations in the range $$2 \lesssim z \lesssim 5$$ can more than triple the volume surveyed at $$z \lesssim 2$$, and, together with the sufficiently high galaxy number in this interval, strongly motivates a future spectroscopic survey that exploits this opportunity. In addition, tomography allows mapping the growth of structure with redshift, which provides robust constraints on Dark Energy and neutrino masses while relaxing restrictive assumptions such as a power-law primordial power spectrum. Finally, cross-correlation with external tracers, such as CMB lensing, Intensity Mapping or the Lyman-$$\alpha$$ forest, immunises the constraints to the systematics that make measurement challenging and further improves the precision through ‘sample variance cancellation’ and degeneracy breaking.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1771952
Journal Information:
Bulletin of the American Astronomical Society, Journal Name: Bulletin of the American Astronomical Society Journal Issue: 3 Vol. 51; ISSN 0002-7537
Publisher:
American Astronomical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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