Experimental quantum secret sharing based on phase encoding of coherent states. (arXiv:2303.14622v2 [quant-ph] UPDATED)

Quantum secret sharing (QSS) is one of the basic communication primitives in
future quantum networks which addresses part of the basic cryptographic tasks
of multiparty communication and computation. Nevertheless, it is a challenge to
provide a practical QSS protocol with security against general attacks. A QSS
protocol that balances security and practicality is still lacking. Here, we
propose a QSS protocol with simple phase encoding of coherent states among
three parties. Removing the requirement of impractical entangled resources and
the …

addresses attacks basic challenge coherent communication computation encoding entangled future general networks protocol quantum randomization resources secret security sharing simple states