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quant-ph2025
Deterministic Single-Photon Adder and Subtractor
Si-Qi Jiang, Hai-Jun Xing, Li-Ping Yang
Single-photon addition and subtraction are fundamental operations in quantum information processing. Traditionally, the behavior of a single-photon adder (SPA) and single-photon su…
quant-ph2024
New Angular Momentum Conservation Laws for Gauge Fields in QED
Farhad Khosravi, Li-Ping Yang, Pronoy Das +1
Quantum electrodynamics (QED) deals with the relativistic interaction of bosonic gauge fields and fermionic charged particles. In QED, global conservation laws of angular momentum…