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Quantum Algorithms
Universal quantum computation in decoherence-free subspaces with hot trapped-ions
arXiv
Authors: Leandro Aolita, Luiz Davidovich, Kihwan Kim, Hartmut Häffner
Year
2007
Paper ID
50093
Status
Preprint
Abstract Read
~2 min
Abstract Words
69
Citations
N/A
Abstract
We consider interactions that generate a universal set of quantum gates on logical qubits encoded in a collective-dephasing-free subspace, and discuss their implementations with trapped ions. This allows for the removal of the by-far largest source of decoherence in current trapped-ion experiments, collective dephasing. In addition, an explicit parametrization of all two-body Hamiltonians able to generate such gates without the system's state ever exiting the protected subspace is provided.
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- It adds a 2007 reference point for readers tracking recent quantum research.
- We consider interactions that generate a universal set of quantum gates on logical qubits encoded in a collective-dephasing-free subspace, and discuss their implementations...
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