Gate fidelity of arbitrary single-qubit gates constrained by conservation laws

Details Gate fidelity of arbitrary single-qubit gates constrained by conservation laws Gate fidelity of arbitrary single-qubit gates constrained by conservation laws

2008-09-18

arxiv.org/abs/0809.3095v2

Physics

Quantum Physics

Title changed; to appear in J. Phys. A: Math. Theor.; 19 pages, 2 figures

Scientific paper

Recent investigations show that conservation laws limit the accuracy of gate operations in quantum computing. The inevitable error under the angular momentum conservation law has been evaluated so far for the CNOT, Hadamard, and NOT gates for spin 1/2 qubits, while the SWAP gate has no constraint. Here, we extend the above results to general single-qubit gates. We obtain an upper bound of the gate fidelity of arbitrary single-qubit gates implemented under arbitrary conservation laws, determined by the geometry of the conservation law and the gate operation on the Bloch sphere as well as the size of the ancilla.

Affiliated with

Also associated with

No associations

Rating

Gate fidelity of arbitrary single-qubit gates constrained by conservation laws 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 Gate fidelity of arbitrary single-qubit gates constrained by conservation laws, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gate fidelity of arbitrary single-qubit gates constrained by conservation laws will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-280990