Journal ArticleDOI
A one-way quantum computer.
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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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Genuine 12-Qubit Entanglement on a Superconducting Quantum Processor.
Ming Gong,Ming-Cheng Chen,Yarui Zheng,Shiyu Wang,Chen Zha,Hui Deng,Zhiguang Yan,Hao Rong,Yulin Wu,Shaowei Li,Fusheng Chen,Y. Zhao,Futian Liang,Jin Lin,Yu Xu,Cheng Guo,Lihua Sun,Anthony D. Castellano,Haohua Wang,Cheng-Zhi Peng,Chao-Yang Lu,Xiaobo Zhu,Jian-Wei Pan +22 more
TL;DR: The preparation and verification of a genuine 12-qubit entanglement in a superconducting processor and the entangling circuit to generate linear cluster states is depth invariant in the number of qubits and uses single- and double- qubit gates instead of collective interactions.
Journal ArticleDOI
Qudits and high-dimensional quantum computing
TL;DR: This review provides an overview of qudit-based quantum computing covering a variety of topics ranging from circuit building, algorithm design, to experimental methods and various physical realizations for qudit computation.
Journal ArticleDOI
Computational Power of Correlations
Janet Anders,Dan E. Browne +1 more
TL;DR: This work exposes an intriguing relationship between the violation of local realistic models and the computational power of entangled resource states in measurement-based quantum computation.
Journal ArticleDOI
The ZX−calculus is complete for stabilizer quantum mechanics
TL;DR: The ZX-calculus is a graphical calculus for reasoning about quantum systems and processes as mentioned in this paper, and it is known to be universal for pure state qubit quantum mechanics (QM), meaning any pure state, unitary operation and post-selected pure projective measurement can be expressed in the ZXcalculus.
Journal ArticleDOI
Experimental multiparticle entanglement dynamics induced by decoherence
Julio T. Barreiro,Philipp Schindler,Otfried Gühne,Otfried Gühne,Otfried Gühne,Thomas Monz,M. Chwalla,Christian F. Roos,Christian F. Roos,Markus Hennrich,Rainer Blatt,Rainer Blatt +11 more
TL;DR: In this article, a noisy environment is used to study the dynamics of a four-trapped-ion entangled state and it is shown that entanglement properties such as distillability and separability can be altered by controlling the degree of dephasing.
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.