|
| related topics |
| {spin, pulse, spins} |
| {qubit, qubits, gate} |
| {time, decoherence, evolution} |
| {entanglement, phys, rev} |
| {trap, ion, state} |
| {time, wave, function} |
| {phase, path, phys} |
| {cavity, atom, atoms} |
|
Fast Quantum Computing with Buckyballs
Maria Silvia Garelli, Feodor V Kusmartsev
abstract: We have found that encapsulated atoms in fullerene molecules, which carry a
spin, can be used for fast quantum computing. We describe the scheme for
performing quantum computations, going through the preparation of the qubit
state and the realization of a two-qubit quantum gate. When we apply a static
magnetic field to each encased spin, we find out the ideal design for the
preparation of the quantum state. Therefore, adding to our system a time
dependent magnetic field, we can perform a phase-gate. The operational time
related to a $\pi-$phase gate is of the order of $ns$. This finding shows that,
during the decoherence time, which is proportional to $\mu s$, we can perform
many thousands of gate operations. In addition, the two-qubit state which
arises after a $\pi-$gate is characterized by a high degree of entanglement.
This opens a new avenue for the implementation of fast quantum computation.
- oai_identifier:
- oai:arXiv.org:quant-ph/0507169
- categories:
- quant-ph
- comments:
- 9 pages, 4 figures
- arxiv_id:
- quant-ph/0507169
- created:
- 2005-07-18
Full article ▸
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