PT Journal
AU Billangeon, P
   Nakamura, Y
TI Superconducting devices: Quantum cups and balls
SO Nature Physics
JI Nat. Phys.
PY 2011
BP 594
EP 595
VL 7
IS 8
DE fromIPMRAS
AB A single microwave photon in a superposition of two states of different frequency is now demonstrated using a superconducting quantum interference device to mediate the coupling between two harmonics of a resonator. Such quantum circuits bring closer the possibility of controlling photon-photon interactions at the single-photon level.
ER