Time-reversal-symmetric single-photon wave packets for free-space quantum communication. Academic Article uri icon


  • Readout and retrieval processes are proposed for efficient, high-fidelity quantum state transfer between a matter qubit, encoded in the level structure of a single atom or ion, and a photonic qubit, encoded in a time-reversal-symmetric single-photon wave packet. They are based on controlling spontaneous photon emission and absorption of a matter qubit on demand in free space by stimulated Raman adiabatic passage. As these processes do not involve mode selection by high-finesse cavities or photon transport through optical fibers, they offer interesting perspectives as basic building blocks for free-space quantum-communication protocols.

published proceedings

  • Phys Rev Lett

altmetric score

  • 0.25

author list (cited authors)

  • Trautmann, N., Alber, G., Agarwal, G. S., & Leuchs, G.

citation count

  • 8

complete list of authors

  • Trautmann, N||Alber, G||Agarwal, GS||Leuchs, G

publication date

  • May 2015