179 citations · 417 across the 68 of their papers we have counts for
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quant-ph2018
Addressable optical key distribution for unconditionally secured cryptography using phase-controlled quantum superposition
Byoung S. Ham
Based on the detection loophole-free photon key distribution (PKD) compatible with classical optical systems, an optical key distribution (OKD) protocol is presented for unconditio…
quant-ph2018
Unconditionally secured classical cryptography using quantum superposition and unitary transformation
Byoung S. Ham
Over decades quantum cryptography has been intensively studied for unconditionally secured data transmission in a quantum regime. Due to the quantum loopholes caused by imperfect s…
quant-ph2018
Wavelength convertible quantum memory satisfying ultralong photon storage and near perfect retrieval efficiency
Byoung S. Ham
Quantum coherence control is presented for wavelength convertible quantum memory in a double-lambda-type solid ensemble whose spin states are inhomogeneously broadened. Unlike typi…