Nonunitary quantum circuit

Details Nonunitary quantum circuit Nonunitary quantum circuit

2003-04-09

arxiv.org/abs/quant-ph/0304061v5

Int.J.Quantum Inform. 3 (2005) 633-647

Physics

Quantum Physics

19 pages, 6 figures; added a reference

Scientific paper

10.1142/S0219749905001456

A quantum circuit is generalized to a nonunitary one whose constituents are nonunitary gates operated by quantum measurement. It is shown that a specific type of one-qubit nonunitary gates, the controlled-NOT gate, as well as all one-qubit unitary gates constitute a universal set of gates for the nonunitary quantum circuit, without the necessity of introducing ancilla qubits. A reversing measurement scheme is used to improve the probability of successful nonunitary gate operation. A quantum NAND gate and Abrams-Lloyd's nonlinear gate are analyzed as examples. Our nonunitary circuit can be used to reduce the qubit overhead needed to ensure fault-tolerant quantum computation.

Affiliated with

Also associated with

No associations

Rating

Nonunitary quantum circuit does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nonunitary quantum circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonunitary quantum circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-559502