Physics – Quantum Physics
Scientific paper
2010-11-25
Phys. Rev. A 83, 042319 (2011)
Physics
Quantum Physics
14 pages, 11 figures, published version
Scientific paper
10.1103/PhysRevA.83.042319
We present a detailed analysis of the modulated-carrier quantum phase gate implemented with Wigner crystals of ions confined in Penning traps. We elaborate on a recent scheme, proposed by two of the authors, to engineer two-body interactions between ions in such crystals. We analyze for the first time the situation in which the cyclotron (w_c) and the crystal rotation (w_r) frequencies do not fulfill the condition w_c=2w_r. It is shown that even in the presence of the magnetic field in the rotating frame the many-body (classical) Hamiltonian describing small oscillations from the ion equilibrium positions can be recast in canonical form. As a consequence, we are able to demonstrate that fast and robust two-qubit gates are achievable within the current experimental limitations. Moreover, we describe a realization of the state-dependent sign-changing dipole forces needed to realize the investigated quantum computing scheme.
Baltrusch Jens D.
Calarco Tommaso
Negretti Antonio
Taylor Mary Jane
No associations
LandOfFree
Fast and robust quantum computation with ionic Wigner crystals 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 Fast and robust quantum computation with ionic Wigner crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast and robust quantum computation with ionic Wigner crystals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-587977