616 citations
- Hewlett-Packard (United Kingdom)GB12 papers
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- National Institute of InformaticsJP6 papers
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7 papers · 1 filter
Perfect Transfer of Arbitrary States in Quantum Spin Networks
Matthias Christandl, Nilanjana Datta, Tony C. Dorlas +3
We propose a class of qubit networks that admit perfect state transfer of any two-dimensional quantum state in a fixed period of time. We further show that such networks can distri…
Parity measurement of one- and two-electron double well systems
T. M. Stace, S. D. Barrett, H. -S. Goan +1
We outline a scheme to accomplish measurements of a solid state double well system (DWS) with both one and two electrons in non-localised bases. We show that, for a single particle…
Performance Variability and Project Dynamics
Bernardo A. Huberman, Dennis M. Wilkinson
We present a dynamical theory of complex cooperative projects such as large engineering design or software development efforts, comprised of concurrent and interrelated tasks. The…
Communicating continuous quantum variables between different Lorentz frames
Pieter Kok, Timothy C. Ralph, Gerard J. Milburn
We show how to communicate Heisenberg-limited continuous (quantum) variables between Alice and Bob in the case where they occupy two inertial reference frames that differ by an unk…
Improving Dense Packings of Equal Disks in a Square
David W. Boll, Jerry Donovan, Ronald L. Graham +1
We describe a new numerical procedure for generating dense packings of disks and spheres inside various geometric shapes. We believe that in some of the smaller cases, these packin…
Attrition Defenses for a Peer-to-Peer Digital Preservation System
T. J. Giuli, Petros Maniatis, Mary Baker +2
In peer-to-peer systems, attrition attacks include both traditional, network-level denial of service attacks as well as application-level attacks in which malign peers conspire to…