Journal
PHYSICAL REVIEW LETTERS
Volume 117, Issue 14, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.140505
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Funding
- Air Force of Scientific Research [FA9550-12-1-0046]
- Army Research Office [W911NF-15-1-0256]
- Defense Security Science Engineering Fellowship
- Basic Science Research Program through National Research Foundation of Korea [NRF-2015R1A6A3A04059773]
- ICT R&D program of MSIP/IITP [1711028311]
- Mueunjae Institute for Chemistry (MIC) postdoctoral fellowship
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Boson sampling, the task of sampling the probability distribution of photons at the output of a photonic network, is believed to be hard for any classical device. Unlike other models of quantum computation that require thousands of qubits to outperform classical computers, boson sampling requires only a handful of single photons. However, a scalable implementation of boson sampling is missing. Here, we show how superconducting circuits provide such platform. Our proposal differs radically from traditional quantum-optical implementations: rather than injecting photons in waveguides, making them pass through optical elements like phase shifters and beam splitters, and finally detecting their output mode, we prepare the required multiphoton input state in a superconducting resonator array, control its dynamics via tunable and dispersive interactions, and measure it with nondemolition techniques.
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