Zhengfeng Ji

Research Interests

Quantum Information and Computation, Quantum Complexity Theory, Hamiltonian Complexity, Quantum Algorithms, Measurement Based Quantum Computing, Quantum Error Correcting Codes, Entanglement Theory.

Recent Publications

• No-go Theorem for One-way Quantum Computing on Naturally Occurring Two-level Systems, Jianxin Chen, Xie Chen, Runyao Duan, Zhengfeng Ji, Bei Zeng, arxiv: 1004.3787
• Tensor Rank and Stochastic Entanglement Catalysis for Multipartite Pure States, Lin Chen, Eric Chitambar, Runyao Duan, Zhengfeng Ji, Andreas Winter, arxiv: 1003.3059
• Quantum state reduction for universal measurement based computation, Xie Chen, Runyao Duan, Zhengfeng Ji, Bei Zeng, arxiv: 1002.1567
• Multi-Error-Correcting Amplitude Damping Codes, Runyao Duan, Markus Grassl, Zhengfeng Ji, Bei Zeng, arxiv: 1001.2356
• QIP = PSPACE, Rahul Jain, Zhengfeng Ji, Sarvagya Upadhyay, John Watrous, arxiv: 0907.4737
• Non-Identity Check Remains QMA-Complete for Short Circuits, Zhengfeng Ji, Xiaodi Wu, arxiv: 0906.5416
• Predicate transformer semantics of quantum programs. In Semantic Techniques in Quantum Computation, chapter 8, pages 311-360. Cambridge University Press

Seminars

• QIP=PSPACE, Microsoft Research Asia, Beijing
• Introduction to Quantum NP, State Key Laboratory of Computer Science, Institute of Software, CAS
• Complexity of Non-Identity Check for Short Circuits, Nanjing, AQIS09