Preserving coherence in quantum computation by pairing quantum bits
| dc.creator | Duan, Lu-Ming | |
| dc.creator | Guo, Guang-Can | |
| dc.date | 1997-03-22 | |
| dc.date | 1997-10-03 | |
| dc.date.accessioned | 2026-07-07T12:33:22Z | |
| dc.date.available | 2026-07-07T12:33:22Z | |
| dc.description | A scheme is proposed for protecting quantum states from both independent decoherence and cooperative decoherence. The scheme operates by pairing each qubit (two-state quantum system) with an ancilla qubit and by encoding the states of the qubits into the corresponding coherence-preserving states of the qubit-pairs. In this scheme, the amplitude damping (loss of energy) is prevented as well as the phase damping (dephasing) by a strategy called the free-Hamiltonian-elimination We further extend the scheme to include quantum gate operations and show that loss and decoherence during the gate operations can also be prevented. | |
| dc.description | 12 pages, Latex, some correction in the reference and introduction. Jour-ref: Phys. Rev. Lett. 79, 1953, 1997 | |
| dc.identifier | https://arxiv.org/abs/quant-ph/9703040 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/9703040 | |
| dc.identifier | Phys.Rev.Lett.79:1953-1956,1997 | |
| dc.identifier | doi:10.1103/PhysRevLett.79.1953 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/217098 | |
| dc.subject | Quantum Physics | |
| dc.title | Preserving coherence in quantum computation by pairing quantum bits | |
| dc.type | text |