Towards high-speed optical quantum memories. Reim, K., Nunn, J., b Lorenz, V., c Sussman, B., Lee, K., Langford, N., Jaksch, D., & Walmsley, I. Nature Photonics, 4(4):218-221, 2010. cited By 137
Towards high-speed optical quantum memories [link]Paper  abstract   bibtex   
Quantum memories, capable of controllably storing and releasing a photon, are a crucial component for quantum computers1 and quantum communications2. To date, quantum memories3-6 have operated with bandwidths that limit data rates to megahertz. Here we report the coherent storage and retrieval of sub-nanosecond low-intensity light pulses with spectral bandwidths exceeding 1GHz in caesium vapour. The novel memory interaction takes place through a far off-resonant two-photon transition in which the memory bandwidth is dynamically generated by a strong control field7,8. This should allow data rates more than 100 times greater than those of existing quantum memories. The memory works with a total efficiency of 15%, and its coherence is demonstrated through direct interference of the stored and retrieved pulses. Coherence times in hot atomic vapours are on the order of microseconds, the expected storage time limit for this memory. © 2010 Macmillan Publishers Limited. All rights reserved.
@article{ Reim2010218,
  author = {Reim, K.F.a , Nunn, J.a , Lorenz, V.O.a b , Sussman, B.J.a c , Lee,
	K.C.a , Langford, N.K.a , Jaksch, D.a , Walmsley, I.A.a },
  title = {Towards high-speed optical quantum memories},
  journal = {Nature Photonics},
  year = {2010},
  volume = {4},
  pages = {218-221},
  number = {4},
  note = {cited By 137},
  abstract = {Quantum memories, capable of controllably storing and releasing a
	photon, are a crucial component for quantum computers1 and quantum
	communications2. To date, quantum memories3-6 have operated with
	bandwidths that limit data rates to megahertz. Here we report the
	coherent storage and retrieval of sub-nanosecond low-intensity light
	pulses with spectral bandwidths exceeding 1GHz in caesium vapour.
	The novel memory interaction takes place through a far off-resonant
	two-photon transition in which the memory bandwidth is dynamically
	generated by a strong control field7,8. This should allow data rates
	more than 100 times greater than those of existing quantum memories.
	The memory works with a total efficiency of 15%, and its coherence
	is demonstrated through direct interference of the stored and retrieved
	pulses. Coherence times in hot atomic vapours are on the order of
	microseconds, the expected storage time limit for this memory. ©
	2010 Macmillan Publishers Limited. All rights reserved.},
  affiliation = {Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1
	3PU, United Kingdom; Department of Physics, University of Delaware,
	Newark, DE 19716, United States; National Research Council of Canada,
	Ottawa, ON K1A 0R6, Canada},
  document_type = {Article},
  source = {Scopus},
  url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77950498106&partnerID=40&md5=505bbd356f7cb2160daebfd006d725dd}
}

Downloads: 0