QPIT news

Continuous-variable quantum key distribution (QKD) utilizes an ensemble of coherent states of light to distribute secret encryption keys between two parties in the presence of an eavesdropper (Left). The effect of reconciliation efficiency on the asymptotic secure key rate between distant parties. We proposed some MET-LDPC codes with low FER and high efficiency $\beta$ to obtain a maximum possible secure key rate (Right)
29 JUN

Multiedge-type low-density parity-check codes for continuous-variable quantum...

Error correction is one of the most important and difficult tasks when generating secret keys with the quantum key distribution. In collaboration with researchers from...

Illustration of unambiguous state discrimination of coherent states
21 APR

Feedback receiver for quantum state discrimination

Over the course of two years, we demonstrated a number of improvements to the problem of efficiently telling overlapping quantum states apart. Here, we review these results...

Quantum theory and atomic physics Optics