Physics – Quantum Physics
Scientific paper
2004-03-05
Journal of Modern Optics 51, 2395 (2004)
Physics
Quantum Physics
12 pages, 3 figures. Expanded version of manuscript submitted to the Journal of Modern Optics. v2 corrects typesetting error i
Scientific paper
Several proposals for quantum computation utilize a lattice type architecture with qubits trapped by a periodic potential. For systems undergoing many body interactions described by the Bose-Hubbard Hamiltonian, the ground state of the system carries number fluctuations that scale with the number of qubits. This process degrades the initialization of the quantum computer register and can introduce errors during error correction. In an earlier manuscript we proposed a solution to this problem tailored to the loading of cold atoms into an optical lattice via the Mott Insulator phase transition. It was shown that by adding an inhomogeneity to the lattice and performing a continuous measurement, the unit filled state suitable for a quantum computer register can be maintained. Here, we give a more rigorous derivation of the register fidelity in homogeneous and inhomogeneous lattices and provide evidence that the protocol is effective in the finite temperature regime.
Brennen Gavin
Clark Charles W.
Pupillo Guido
Rey Ana Maria
Williams Carl J.
No associations
LandOfFree
Scalable quantum computation in systems with Bose-Hubbard dynamics 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 Scalable quantum computation in systems with Bose-Hubbard dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scalable quantum computation in systems with Bose-Hubbard dynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-654108