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A quantum enhanced search for dark matter axions.
Backes, K M; Palken, D A; Kenany, S Al; Brubaker, B M; Cahn, S B; Droster, A; Hilton, Gene C; Ghosh, Sumita; Jackson, H; Lamoreaux, S K; Leder, A F; Lehnert, K W; Lewis, S M; Malnou, M; Maruyama, R H; Rapidis, N M; Simanovskaia, M; Singh, Sukhman; Speller, D H; Urdinaran, I; Vale, Leila R; van Assendelft, E C; van Bibber, K; Wang, H.
Afiliação
  • Backes KM; Department of Physics, Yale University, New Haven, CT, USA. kelly.backes@yale.edu.
  • Palken DA; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, CO, USA.
  • Kenany SA; Department of Physics, University of Colorado, Boulder, CO, USA.
  • Brubaker BM; Department of Nuclear Engineering, University of California, Berkeley, CA, USA.
  • Cahn SB; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, CO, USA.
  • Droster A; Department of Physics, University of Colorado, Boulder, CO, USA.
  • Hilton GC; Department of Physics, Yale University, New Haven, CT, USA.
  • Ghosh S; Department of Nuclear Engineering, University of California, Berkeley, CA, USA.
  • Jackson H; National Institute of Standards and Technology, Boulder, CO, USA.
  • Lamoreaux SK; Department of Physics, Yale University, New Haven, CT, USA.
  • Leder AF; Department of Nuclear Engineering, University of California, Berkeley, CA, USA.
  • Lehnert KW; Department of Physics, Yale University, New Haven, CT, USA.
  • Lewis SM; Department of Nuclear Engineering, University of California, Berkeley, CA, USA.
  • Malnou M; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, CO, USA.
  • Maruyama RH; Department of Physics, University of Colorado, Boulder, CO, USA.
  • Rapidis NM; National Institute of Standards and Technology, Boulder, CO, USA.
  • Simanovskaia M; Department of Nuclear Engineering, University of California, Berkeley, CA, USA.
  • Singh S; JILA, National Institute of Standards and Technology and the University of Colorado, Boulder, CO, USA.
  • Speller DH; National Institute of Standards and Technology, Boulder, CO, USA.
  • Urdinaran I; Department of Physics, Yale University, New Haven, CT, USA.
  • Vale LR; Department of Nuclear Engineering, University of California, Berkeley, CA, USA.
  • van Assendelft EC; Department of Nuclear Engineering, University of California, Berkeley, CA, USA.
  • van Bibber K; Department of Physics, Yale University, New Haven, CT, USA.
  • Wang H; Department of Physics, Yale University, New Haven, CT, USA.
Nature ; 590(7845): 238-242, 2021 02.
Article em En | MEDLINE | ID: mdl-33568823
ABSTRACT
The manipulation of quantum states of light1 holds the potential to enhance searches for fundamental physics. Only recently has the maturation of quantum squeezing technology coincided with the emergence of fundamental physics searches that are limited by quantum uncertainty2,3. In particular, the quantum chromodynamics axion provides a possible solution to two of the greatest outstanding problems in fundamental physics the strong-CP (charge-parity) problem of quantum chromodynamics4 and the unknown nature of dark matter5-7. In dark matter axion searches, quantum uncertainty manifests as a fundamental noise source, limiting the measurement of the quadrature observables used for detection. Few dark matter searches have approached this limit3,8, and until now none has exceeded it. Here we use vacuum squeezing to circumvent the quantum limit in a search for dark matter. By preparing a microwave-frequency electromagnetic field in a squeezed state and near-noiselessly reading out only the squeezed quadrature9, we double the search rate for axions over a mass range favoured by some recent theoretical projections10,11. We find no evidence of dark matter within the axion rest energy windows of 16.96-17.12 and 17.14-17.28 microelectronvolts. Breaking through the quantum limit invites an era of fundamental physics searches in which noise reduction techniques yield unbounded benefit compared with the diminishing returns of approaching the quantum limit.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nature Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Estados Unidos
Texto completo
Adicionar na Minha BVS
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nature Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Estados Unidos