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Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Braid topologies for quantum computation
N E Bonesteel1, L Hormozi, G Zikos
1Department of Physics and National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
Abstract:
In topological quantum computation, quantum information is stored in states which are intrinsically protected from decoherence, and quantum gates are carried out by dragging particlelike excitations (quasiparticles) around one another in two space dimensions. The resulting quasiparticle trajectories define world lines in three-dimensional space-time, and the corresponding quantum gates depend only on the topology of the braids formed by these world lines. We show how to find braids that yield a universal set of quantum gates for qubits encoded using a specific kind of quasiparticle which is particularly promising for experimental realization.
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