Experimental controlled-NOT logic gate for single photons in the coincidence basis

By T. Pittman, M. J. Fitch, B. Jacobs, J. Franson. 2003

257 citations recorded by the source corpus.

We report a proof-of-principle demonstration of a probabilistic controlled-NOT gate for single photons. Single-photon control and target qubits were mixed with a single ancilla photon in a device constructed using only linear optical elements. The successful operation of the controlled-NOT gate relied on post-selected three-photon interference effects, which required the detection of the photons in the output modes.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/5b29eed726a87bbba0ac991feeab903067f9ff67

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Photonic State Tomography (2005, background): “The theoretical sections provide a foundation for quantum state tomography, and should be applicable to any system, including photons (White et al., 1999; Sanaka et al., 2001; Mair et al., 2001; Nambu et al., 2002; Giorgi et al., 2003; Yamamoto et al., 2003; Sergienko et al., 2003; Pittman et al., 2”
Heralded generation of entangled photon pairs (2010, methodology): “[7] Pittman, T.”
Multiphoton entanglement and interferometry (2008, background): “…various quantum computation primitives have been demonstrated with photons alone–including conditional phase shift operations (Sanaka et al., 2004), and destructive (Pittman et al., 2002, 2003; O’Brien et al., 2003) and even non-destructive CNOT gates (Gasparoni et al., 2004; Zhao et al., 2005b).”