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Article
Open AccessHigh-dimensional single photon based quantum secure direct communication using time and phase mode degrees
Quantum secure direct communication (QSDC) can guarantee security using the characteristics of quantum mechanics even when a message is directly transmitted through a quantum channel without using a secret key...
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Article
Statistical fluctuation analysis for decoy-state quantum secure direct communication
In quantum secure direct communication (QSDC), messages are transmitted directly through quantum channels. The decoy state scheme has been widely studied to detect eavesdroppers and improve the secrecy capacit...
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Article
Open AccessFlexible soft-output decoding of polar codes
In this research, we study soft-output decoding of polar codes. Two representative soft-output decoding algorithms are belief propagation (BP) and soft cancellation (SCAN). The BP algorithm has low latency but...
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Article
Open AccessRectangular surface code under biased noise
To date, the surface code has become a promising candidate for quantum error correcting codes because it achieves a high threshold and is composed of only the nearest gate operations and low-weight stabilizers...
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Article
Improved statistical fluctuation analysis for twin-field quantum key distribution
The decoy state scheme is the most widely studied quantum key distribution protocol to detect existence of eavesdrop**. Twin-field quantum key distribution (TF-QKD) is a promising protocol for realizing secr...
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Article
The Cleansing Effect of Offshoring in an Analysis of Employment
This paper uses a partial equilibrium heterogeneous firm model to explore distinctive firm-level operational responses to offshoring and the resulting short-run employment effect. We find that the industry-lev...
