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13 papers · 2 filters
Entanglement in the Dicke model
S. Schneider, G. J. Milburn
We show how an ion trap, configured for the coherent manipulation of external and internal quantum states, can be used to simulate the irreversible dynamics of a collective angular…
Creating Decoherence-Free Subspaces with Strong and Fast Pulses
L. -A. Wu, D. A. Lidar
A decoherence-free subspace (DFS) isolates quantum information from deleterious environmental interactions. We give explicit sequences of strong and fast (``bang-bang'', BB) pulses…
Combined encoding and decoupling solution to problems of decoherence and design in solid-state quantum computing
Mark S. Byrd, Daniel A. Lidar
Proposals for scalable quantum computing devices suffer not only from decoherence due to the interaction with their environment, but also from severe engineering constraints. Here…
Bang-Bang Operations from a Geometric Perspective
Mark S. Byrd, Daniel A. Lidar
Strong, fast pulses, called ``bang-bang'' controls can be used to eliminate the effects of system-environment interactions. This method for preventing errors in quantum information…
An Implementation of the Deutsch-Jozsa Algorithm on Molecular Vibronic Coherences Through Four-Wave Mixing: a Theoretical Study
Zsolt Bihary, David R. Glenn, Daniel A. Lidar +1
Time-Frequency Resolved Coherent Anti-Stokes Raman Scattering (TFRCARS) was recently proposed as a means to implement quantum logic using the molecular ro-vibrational manifold as a…
Two Qubit Quantum Computing in a Projected Subspace
Bi Qiao, H. E. Ruda, M. S. Zhan
A formulation for performing quantum computing in a projected subspace is presented, based on the subdynamical kinetic equation (SKE) for an open quantum system. The eigenvectors o…