Proposal for measurement-device-independent quantum key distribution using single-photon two-qubit states

W. A. T. NOGUEIRA; L REBÓN; P. GONZÁLEZ; C. SAAVEDRA; G. LIMA; G. B. XAVIER

Florianópolis

Congreso; Quantum Optics 2012; 2012

We present a QKD protocol immune to side-channel attacks in which only a single-photon propagating from Alice to Bob is employed to execute the protocol. The information is encoded in two degrees of freedom: polarization by Alice and path by Bob, from which a full Bell-state measurement can be performed on the single-photon two-qubit state by an untrusted analyzer.