Journal ArticleDOI
A one-way quantum computer.
TLDR
A scheme of quantum computation that consists entirely of one-qubit measurements on a particular class of entangled states, the cluster states, which are thus one-way quantum computers and the measurements form the program.Abstract:
We present a scheme of quantum computation that consists entirely of one-qubit measurements on a particular class of entangled states, the cluster states. The measurements are used to imprint a quantum logic circuit on the state, thereby destroying its entanglement at the same time. Cluster states are thus one-way quantum computers and the measurements form the program.read more
Citations
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Journal ArticleDOI
Quantum entanglement
TL;DR: In this article, the basic aspects of entanglement including its characterization, detection, distillation, and quantification are discussed, and a basic role of entonglement in quantum communication within distant labs paradigm is discussed.
Journal ArticleDOI
Entanglement in many-body systems
TL;DR: In this article, the properties of entanglement in many-body systems are reviewed and both bipartite and multipartite entanglements are considered, and the zero and finite temperature properties of entangled states in interacting spin, fermion and boson model systems are discussed.
Journal ArticleDOI
Gaussian quantum information
Christian Weedbrook,Stefano Pirandola,Raúl García-Patrón,Nicolas J. Cerf,Timothy C. Ralph,Jeffrey H. Shapiro,Seth Lloyd +6 more
TL;DR: This review focuses on continuous-variable quantum information processes that rely on any combination of Gaussian states, Gaussian operations, and Gaussian measurements, including quantum communication, quantum cryptography, quantum computation, quantum teleportation, and quantum state and channel discrimination.
Journal ArticleDOI
Linear optical quantum computing with photonic qubits
Pieter Kok,William J. Munro,Kae Nemoto,Timothy C. Ralph,Jonathan P. Dowling,Gerard J. Milburn +5 more
TL;DR: In this article, the authors reviewed the original theory and its improvements, and a few examples of experimental two-qubit gates are given, and the use of realistic components, the errors they induce in the computation, and how these errors can be corrected is discussed.
Journal ArticleDOI
Quantum Computing
Thaddeus D. Ladd,Fedor Jelezko,Raymond Laflamme,Yasunobu Nakamura,Christopher Monroe,Jeremy L. O'Brien +5 more
TL;DR: A number of physical systems, spanning much of modern physics, are being developed for this task, ranging from single particles of light to superconducting circuits, and it is not yet clear which, if any, will ultimately prove successful as discussed by the authors.
References
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Journal ArticleDOI
On the characterization of entanglement
TL;DR: In this article, a mathematical characterization of these monotone magnitudes is presented, which are then related to optimal strategies of conversion of shared states, and more detailed results are presented for pure states of bipartite systems.
Journal ArticleDOI
Quantum logic gates in optical lattices
TL;DR: In this paper, neutral atoms are trapped in a very far-off-resonance optical lattice, and pairs of atoms are made to occupy the same well by varying the polarization of the trapping lasers.
Journal ArticleDOI
A scalable quantum computer with ions in an array of microtraps
J. I. Cirac,Peter Zoller +1 more
TL;DR: A model for an ion trap quantum computer that combines scalability (a feature usually associated with solid state proposals) with the advantages of quantum optical systems (in particular, quantum control and long decoherence times) is proposed.
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Quantum gates with neutral atoms: Controlling collisional interactions in time-dependent traps
TL;DR: In this paper, the fidelity of a gate operation for a configuration where a potential barrier between two atoms is instantaneously removed and restored after a certain time was investigated. But the fidelity was not defined.
Journal ArticleDOI
Unity Occupation of Sites in a 3D Optical Lattice
TL;DR: In this paper, an average filling factor of one atom per lattice site has been obtained in a submicron scale far-off-resonance optical lattice (FORL).