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Experimental demonstration of CNOT gate for frequency-encoded qubits

Conference ·
 [1];  [2];  [1];  [2];  [2];  [1];  [2]
  1. Purdue University
  2. ORNL
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We demonstrate the first two-photon gate for frequency-bin qubits, using optical pulse shaping and electro-optic phase modulation. Our coincidence-basis CNOT has a fidelity of 0.9947 ± 0.0008 and shows controlled qubit flips in the computational basis.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1474608
Country of Publication:
United States
Language:
English

References (8)

Ramsey Interference with Single Photons journal November 2016
Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing journal January 2018
A scheme for efficient quantum computation with linear optics journal January 2001
Direct characterization of linear-optical networks journal January 2013
Linear optical controlled-NOT gate in the coincidence basis journal June 2002
Frequency-encoded photonic qubits for scalable quantum information processing journal December 2016
Frequency-domain Hong–Ou–Mandel interference journal April 2016
Complementary Classical Fidelities as an Efficient Criterion for the Evaluation of Experimentally Realized Quantum Operations journal April 2005

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