Journal ArticleDOI
Quantum Key Distribution Using Spin Wave–Optical Interactions
Pradeep Kumar,Anil Prabhakar +1 more
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TLDR
In this paper, the authors proposed the use of spin wave-optical interactions to implement the BB84 and B92 quantum key distribution (QKD) protocols, which can mitigate any medium-induced polarization fluctuations.Abstract:
We propose the use of spin wave-optical interactions to implement the BB84 and B92 quantum key distribution (QKD) protocols. Spin waves couple the transverse magnetic (TM) and transverse electric (TE) optical modes of a waveguide. We derive the interaction Hamiltonian to describe the coupling, and solve the resulting equations to determine the time evolution of quantized TM and TE modes. With a judicious choice of coupling coefficient, a set of four nonorthogonal states-formally equivalent to the set of polarization states of a single photon-can be generated. These states form a conjugate basis suitable as a QKD basis set. The proposed scheme can mitigate any medium-induced polarization fluctuations. The spin wave-optical interactions can be used to implement the BB84 protocol using frequency-coded coherent optical states.read more
Citations
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Journal ArticleDOI
Heterogeneous integration of a III-V VCSEL light source for optical fiber sensing.
TL;DR: The heterogeneous integration of the III-V VCSEL and SOI waveguides by BBG plays a fundamental role in inducing a great breakthrough to the miniaturization of an on-chip light source for optical fiber sensing.
Proceedings ArticleDOI
Quantum key distribution using transverse spin wave-optical interactions
Pradeep Kumar,Anil Prabhakar +1 more
TL;DR: In this article, a frequency-coded scheme to implement the BB84 quantum key distribution protocol using spin-wave (SW)-optical interactions was proposed, which offers a higher key rate, due to a modulation frequency as high as 25 GHz, and relaxes the specifications on the optical filter at the receiver.
Journal ArticleDOI
Magnon-Photon interactions for Quantum Key Distribution
Pradeep Kumar,Anil Prabhakar +1 more
TL;DR: In this article, the authors proposed an implementation of QKD protocol using magnon-photon interactions in dielectric waveguides. But the main advantage of their scheme is the higher quantum bit error rate (QBER) (37.5%) compared to polarization-coded scheme (25%) for simple intercept/resend attack.
Proceedings ArticleDOI
Single-qubit quantum gates using magnon-photon interaction
TL;DR: In this paper, the spin wave-optical interactions in YIG films can be used to realize single-qubit gates with high speed gating, ease of integration, and efficient operation in C-band.
Proceedings ArticleDOI
The Kullback-Leibler divergence as the logarithm of the quantum bit error rate and the lost of information at the BB84 protocol
TL;DR: In this paper, the KullbackLeibler divergence emerges in a natural manner from a theory of entropy inside of BB84 protocol under the assumption that the sending and receiving of data are governed by polarized photons without any explicit law that defines the coincidence of bits in both parties.
References
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TL;DR: The author revealed that quantum teleportation as “Quantum one-time-pad” had changed from a “classical teleportation” to an “optical amplification, privacy amplification and quantum secret growing” situation.
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