Deterministic Generation of Entangled Photons in Superconducting Resonator Arrays
Yong Hu, Lin Tian
DOI 10.1103/PhysRevLett.106.257002 · Physical Review Letters
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Abstract
We present a scheme for the deterministic generation of entangled photon pairs in a superconducting resonator array. The resonators form a Jaynes-Cummings lattice via the coupling to superconducting qubits, and the Kerr-like nonlinearity arises due to the coupling. We show that entangled photons can be generated on demand by applying spectroscopic techniques and exploiting the nonlinearity and symmetry in the resonators. The scheme is robust against small parameter spreads due to fabrication errors. Our findings can be used as a key element for quantum information processing in superconducting quantum circuits.
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