51 citations · 51 across the 2 of their papers we have counts for
6 papers
Unlocking vacuum entanglement
Andrew Steane, Haru Ishizaka
The structure of entanglement in the ground state of the harmonic chain is studied. A class of two-mode squeezed states, useful for this purpose, is identified. The entanglement of…
Pulsed force sequences for fast phase-insensitive quantum gates in trapped ions
A M Steane, G Imreh, J P Home +1
We show how to create quantum gates of arbitrary speed between trapped ions, using a laser walking wave, with complete insensitivity to drift of the optical phase, and requiring co…
Superfast Cooling
S. Machnes, M. B. Plenio, B. Reznik +2
Currently laser cooling schemes are fundamentally based on the weak coupling regime. This requirement sets the trap frequency as an upper bound to the cooling rate. In this work we…
Speed of ion trap quantum information processors
A. Steane, C. F. Roos, D. Stevens +4
We investigate theoretically the speed limit of quantum gate operations for ion trap quantum information processors. The proposed methods use laser pulses for quantum gates which e…
A quantum computer only needs one universe
A. M. Steane
The nature of quantum computation is discussed. It is argued that, in terms of the amount of information manipulated in a given time, quantum and classical computation are equally…
Simple experimental methods for trapped ion quantum processors
D. Stevens, J. Brochard, A. M. Steane
Two techniques are described that simplify the experimental requirements for measuring and manipulating quantum information stored in trapped ions. The first is a new technique usi…