Quantum manipulation in a Josephson light-emitting diode.
We assess the suitability of the recently proposed Josephson LED for quantum manipulation purposes. We show that the device can both be used for on-demand production of entangled photon pairs and operated as a two-qubit gate. Also, one can entangle particle spin with photon polarization and/or measure the spin by measuring the polarization.
Hassler
Fabian
F
Instituut-Lorentz, Universiteit Leiden, PO Box 9506, 2300 RA Leiden, The Netherlands.
Nazarov
Yuli V
YV
Kouwenhoven
Leo P
LP