More practical cloud quantum computing

• Project/Area Number: 26730003
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Theory of informatics
• Research Institution: Gunma University
• Principal Investigator: Morimae Tomoyuki 群馬大学, 先端科学研究指導者育成ユニット, 助教 (50708302)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 量子計算

Outline of Final Research Achievements

The purpose of the present project was to realize more practical blind quantum computing. Blind quantum enables a client to delegate her quantum computing to a remote server in without leaking any privacy. The correctness of the quantum computing done by the server can also be verified. For that goal, the graph state that is generated by the server was tested by measuring stabilizer operators. If the test passes, the state is guaranteed to be close to the ideal graph state.

Research Products

• [Int'l Joint Research] ウィーン大学(オーストリア)
• [Int'l Joint Research] スロバキアアカデミー(スロバキア)
• [Int'l Joint Research] アーヘン工科大学(ドイツ)
• [Journal Article] Power of one nonclean qubit (2017)
  • Author(s): Tomoyuki Morimae, Keisuke Fujii, Harumichi Nishimura
  • Journal Title: Phys. Rev. A Volume: 95 Issue: 4 Pages: 042336-042336
  • DOI: 10.1103/physreva.95.042336
  • NAID: 120006331829
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Modified group non-membership is in AWPP (2017)
  • Author(s): Tomoyuki Morimae, Harumichi Nishimura, Francois Le Gall
  • Journal Title: Quantum Information and Computation Volume: 17 Pages: 0242-0242
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Demonstration of measurement-only blind quantum computing (2016)
  • Author(s): Greganti, Roehsner, Barz, Morimae, and Walther
  • Journal Title: New Journal of Physics Volume: 18 Pages: 013020-013020
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Quantum proofs can be verified using only single qubit measurements (2016)
  • Author(s): Morimae, Nagaj, Schuch
  • Journal Title: Phys. Rev. A Volume: 93 Pages: 022326-022326
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Acausal measurement-based uantum computing (2014)
  • Author(s): Tomoyuki Morimae
  • Journal Title: Physical Review A Volume: 90 Pages: 010101-010101
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Hardness of simulating one clean qubit model (2014)
  • Author(s): Tomoyuki Morimae, Keisuke Fujii, Joe Fitzsimons
  • Journal Title: Physical Review Letters Volume: 112 Pages: 130502-130502
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Measurement-based quantum computing on tensor-network states (2014)
  • Author(s): Tomoyuki Morimae
  • Organizer: Tensor network states: Algorithms and Applications Institute of Physics
  • Place of Presentation: Chinese Academy
  • Year and Date: 2014-12-01
  • Invited