Journal ArticleDOI
A one-way quantum computer.
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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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High-dimensional quantum state transfer through a quantum spin chain
Wei Qin,Chuan Wang,Gui-Lu Long +2 more
TL;DR: In this article, a high-dimensional quantum state transfer protocol with high fidelity between two remote registers through an $XX$ coupling spin chain of arbitrary length is proposed. But the protocol is not suitable for the case where the quantum data bus is in thermal equilibrium state under an external magnetic field.
Journal ArticleDOI
Resource Theory of Entanglement with a Unique Multipartite Maximally Entangled State.
TL;DR: It is proved that the resource theory of GME that is formulated here has a unique maximally entangled state, the generalized GHZ state, which can be transformed to any other state by the allowed free operations.
Journal ArticleDOI
Potential and limits to cluster state quantum computing using probabilistic gates
TL;DR: For two-dimensional cluster states, it is shown that for any elementary success probability, an essentially deterministic preparation of a cluster state with quadratic, hence optimal, asymptotic scaling in the use of entangled pairs is found.
Journal Article
Quantum computation beyond the circuit model
Edward Farhi,Stephen P. Jordan +1 more
TL;DR: The quantum circuit model is the most widely used model of quantum computation and provides both a framework for formulating quantum algorithms and an architecture for the physical construction of quantum computers as mentioned in this paper.
Journal ArticleDOI
Low-Entropy States of Neutral Atoms in Polarization-Synthesized Optical Lattices.
TL;DR: This work creates low-entropy states of neutral atoms by utilizing a conceptually new optical-lattice technique that relies on a high-precision, high-bandwidth synthesis of light polarization.
References
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Journal ArticleDOI
Elementary gates for quantum computation.
Adriano Barenco,Charles H. Bennett,Richard Cleve,David P. DiVincenzo,Norman Margolus,Peter W. Shor,Tycho Sleator,John A. Smolin,Harald Weinfurter +8 more
TL;DR: U(2) gates are derived, which derive upper and lower bounds on the exact number of elementary gates required to build up a variety of two- and three-bit quantum gates, the asymptotic number required for n-bit Deutsch-Toffoli gates, and make some observations about the number of unitary operations on arbitrarily many bits.
Journal ArticleDOI
Quantum information and computation
TL;DR: In information processing, as in physics, the classical world view provides an incomplete approximation to an underlying quantum reality that can be harnessed to break codes, create unbreakable codes, and speed up otherwise intractable computations.
Journal ArticleDOI
Good quantum error-correcting codes exist
A. R. Calderbank,Peter W. Shor +1 more
TL;DR: The techniques investigated in this paper can be extended so as to reduce the accuracy required for factorization of numbers large enough to be difficult on conventional computers appears to be closer to one part in billions.
Journal ArticleDOI
Error Correcting Codes in Quantum Theory.
TL;DR: It is shown that a pair of states which are, in a certain sense, “macroscopically different,” can form a superposition in which the interference phase between the two parts is measurable, providing a highly stabilized “Schrodinger cat” state.
Journal ArticleDOI
Demonstrating the viability of universal quantum computation using teleportation and single-qubit operations
TL;DR: It is shown that single quantum bit operations, Bell-basis measurements and certain entangled quantum states such as Greenberger–Horne–Zeilinger (GHZ) states are sufficient to construct a universal quantum computer.