7 papers
Experimental asymmetric relativistic zero-knowledge proofs with unconditional security
Chen-Xun Weng, Ming-Yang Li, Nai-Rui Xu +6
Zero-knowledge proofs (ZKPs) are widely applied in digital economies, such as cryptocurrencies and smart contracts, for establishing trust and privacy between untrusted parties. Cl…
Sample Optimal and Memory Efficient Quantum State Tomography
Yanglin Hu, Enrique Cervero-MartÃn, Elias Theil +2
Quantum state tomography is the fundamental physical task of learning a complete classical description of an unknown state of a quantum system given coherent access to many identic…
Consecutive Measurement Tradeoffs in Quantum Cryptography
Chen-Xun Weng, Minglong Qin, Yanglin Hu +1
Mistrustful quantum cryptographic protocols encode information in incompatible observables, so that any attempt by a dishonest party to access multiple pieces of information necess…
Reinforcement learning for quantum processes with memory
Josep Lumbreras, Ruo Cheng Huang, Yanglin Hu +2
In reinforcement learning, an agent interacts sequentially with an environment to maximize a reward, receiving only partial, probabilistic feedback. This creates a fundamental expl…
Experimental Asynchronous Measurement-Device-Independent Quantum Cryptographic Conferencing
Yifeng Du, Yang Hu, Yufeng Liu +4
The quantum cryptographic conferencing (QCC) protocol, which distributes identical secure keys to user groups, is a crucial component of the quantum network. Previous experimental…
On the composable security of weak coin flipping
Jiawei Wu, Yanglin Hu, Akshay Bansal +1
Weak coin flipping is a cryptographic primitive in which two mutually distrustful parties generate a shared random bit to agree on a winner via remote communication. While a stand-…