Abstract
We use a microwave field to control the quantum state of optical photons stored in a cold atomic cloud. The photons are stored in highly excited collective states (Rydberg polaritons) enabling both fast qubit rotations and control of photon-photon interactions. Through the collective read-out of these pseudospin rotations it is shown that the microwave field modifies the long-range interactions between polaritons. This technique provides a powerful interface between the microwave and optical domains, with applications in quantum simulations of spin liquids, quantum metrology and quantum networks.
Original language | English |
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Article number | 103001 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 110 |
Issue number | 10 |
Early online date | 4 Mar 2013 |
DOIs | |
Publication status | Published - 8 Mar 2013 |
Keywords
- optical photons
- microwave fileds
- polaritons