清华大学交叉信息研究院

曾培
职务: Ph.D Candidate
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A 3rd year Ph.D candidate from Prof. Xiongfeng Ma's Group.

I am interested in quantum information theory, quantum physics and their correlations between each other. Quantum information theory, as a well formalized mathematical theory, offers new insights and provide new tools to describe quantum physics. For examples, the quantum resources theories help us to quantify the quantumness: entanglement, coherence, magic, etc. in different information processing tasks. Such tool helps us understand the thermodynamics in a small quantum system, or even the relativistic objects.

1. Quantum information theory and its application in cryptography. Quantum key distribution for long communication distance and high key rate.

2. Entanglement quantification and detection in the many-body systems. Scalable methods to benchmark the many-body systems.

3. (Future) The role of coherence and entanglement in quantum thermodynamics and quantum gravity.

4. (Future) How quantum computer can help to simulate the quantum system or quantum fields.

 

Publications:

[1] Xiongfeng Ma, Pei Zeng, and Hongyi Zhou. "Phase-Matching Quantum Key Distribution." Physical Review X 8.3(2018).

[2] Hongyi Zhou, Pei Zeng, Mohsen Razavi and Xiongfeng Ma. "Randomness quantification of coherent detection." Physical Review A. 98.042321(2018).