activity
19962000
collaborators

5 papers

quant-ph2000

Dynamical Stability of an Ion in a Linear Trap as a Solid-State Problem of Electron Localization

G. P. Berman, A. R. Bishop, D. F. V. James +2

When an ion confined in a linear ion trap interacts with a coherent laser field, the internal degrees of freedom, related to the electron transitions, couple to the vibrational deg…

quant-ph2000

Observation of power-law scaling for phase transitions in linear trapped ion crystals

D. G. Enzer, M. M. Schauer, J. J. Gomez +10

We report an experimental confirmation of the power-law relationship between the critical anisotropy parameter and ion number for the linear-to-zigzag phase transition in an ionic…

quant-ph1999

Dynamical Stability and Quantum Chaos of Ions in a Linear Trap

G. P. Berman, D. F. V. James, R. J. Hughes +3

The realization of a paradigm chaotic system, namely the harmonically driven oscillator, in the quantum domain using cold trapped ions driven by lasers is theoretically investigate…

quant-ph1997

Cryptography, Quantum Computation and Trapped Ions

Richard J. Hughes

The significance of quantum computation for cryptography is discussed. Following a brief survey of the requirements for quantum computational hardware, an overview of the ion trap…

quant-ph1996

Decoherence Bounds on Quantum Computation with Trapped Ions

Richard J. Hughes, Daniel F. V. James, Emanuel H. Knill +2

Using simple physical arguments we investigate the capabilities of a quantum computer based on cold trapped ions. From the limitations imposed on such a device by spontaneous decay…