Bidirectional quantum teleportation of unknown photons using path-polarization intra-particle hybrid entanglement and controlled-unitary gates via cross-Kerr nonlinearity<xref ref-type="fn" rid="cpb141732fn1">*</xref>

Bidirectional quantum teleportation of unknown photons using path-polarization intra-particle hybrid entanglement and controlled-unitary gates via cross-Kerr nonlinearity*

Heo Jino^a),^b), Hong Chang-Ho^a),^b), Lim Jong-In^a),^b), Yang Hyung-Jin^a),^c)†

Gaussian probability distribution of the measurements of the probe beam in a coherent state, acquired by an X-homodyne measurement: the black and red curves correspond to f ( X , α ′) and f ( X , α ′ cos θ ), respectively. X ₀ is the midpoint of the two peaks and X _d is the distance between them.