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Quantum information

About: Quantum information is a(n) research topic. Over the lifetime, 22783 publication(s) have been published within this topic receiving 911322 citation(s).

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Papers
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Open accessBook
01 Jan 2000-
Abstract: Part I Fundamental Concepts: 1 Introduction and overview 2 Introduction to quantum mechanics 3 Introduction to computer science Part II Quantum Computation: 4 Quantum circuits 5 The quantum Fourier transform and its application 6 Quantum search algorithms 7 Quantum computers: physical realization Part III Quantum Information: 8 Quantum noise and quantum operations 9 Distance measures for quantum information 10 Quantum error-correction 11 Entropy and information 12 Quantum information theory Appendices References Index

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Topics: Quantum technology (86%), Open quantum system (84%), Quantum information (84%) ...read more

25,609 Citations


Open access
01 Dec 2010-
Abstract: Part I. Fundamental Concepts: 1. Introduction and overview 2. Introduction to quantum mechanics 3. Introduction to computer science Part II. Quantum Computation: 4. Quantum circuits 5. The quantum Fourier transform and its application 6. Quantum search algorithms 7. Quantum computers: physical realization Part III. Quantum Information: 8. Quantum noise and quantum operations 9. Distance measures for quantum information 10. Quantum error-correction 11. Entropy and information 12. Quantum information theory Appendices References Index.

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Topics: Quantum information (84%), Quantum computer (79%), Quantum Fourier transform (75%) ...read more

14,183 Citations


Journal ArticleDOI: 10.1017/S0960129507006317
Thierry Paul1Institutions (1)
Abstract: This special issue of Mathematical Structures in Computer Science contains several contributions related to the modern field of Quantum Information and Quantum Computing. The first two papers deal with entanglement. The paper by R. Mosseri and P. Ribeiro presents a detailed description of the two-and three-qubit geometry in Hilbert space, dealing with the geometry of fibrations and discrete geometry. The paper by J.-G.Luque et al. is more algebraic and considers invariants of pure k-qubit states and their application to entanglement measurement.

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Topics: Quantum algorithm (66%), Quantum technology (65%), Quantum geometry (64%) ...read more

12,173 Citations


Proceedings ArticleDOI: 10.1109/SFCS.1994.365700
Peter W. Shor1Institutions (1)
20 Nov 1994-
Abstract: A computer is generally considered to be a universal computational device; i.e., it is believed able to simulate any physical computational device with a cost in computation time of at most a polynomial factor: It is not clear whether this is still true when quantum mechanics is taken into consideration. Several researchers, starting with David Deutsch, have developed models for quantum mechanical computers and have investigated their computational properties. This paper gives Las Vegas algorithms for finding discrete logarithms and factoring integers on a quantum computer that take a number of steps which is polynomial in the input size, e.g., the number of digits of the integer to be factored. These two problems are generally considered hard on a classical computer and have been used as the basis of several proposed cryptosystems. We thus give the first examples of quantum cryptanalysis. >

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Topics: Quantum algorithm (66%), Quantum computer (64%), Quantum sort (62%) ...read more

5,655 Citations


Journal ArticleDOI: 10.1038/35051009
04 Jan 2001-Nature
Abstract: Quantum computers promise to increase greatly the efficiency of solving problems such as factoring large integers, combinatorial optimization and quantum physics simulation. One of the greatest challenges now is to implement the basic quantum-computational elements in a physical system and to demonstrate that they can be reliably and scalably controlled. One of the earliest proposals for quantum computation is based on implementing a quantum bit with two optical modes containing one photon. The proposal is appealing because of the ease with which photon interference can be observed. Until now, it suffered from the requirement for non-linear couplings between optical modes containing few photons. Here we show that efficient quantum computation is possible using only beam splitters, phase shifters, single photon sources and photo-detectors. Our methods exploit feedback from photo-detectors and are robust against errors from photon loss and detector inefficiency. The basic elements are accessible to experimental investigation with current technology.

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Topics: Linear optical quantum computing (72%), Quantum algorithm (66%), Quantum network (65%) ...read more

4,750 Citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20225
20211,178
20201,316
20191,247
20181,177
20171,335

Top Attributes

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Topic's top 5 most impactful authors

Guang-Can Guo

106 papers, 1.6K citations

Mark M. Wilde

86 papers, 3.5K citations

Timothy C. Ralph

70 papers, 6.2K citations

William J. Munro

69 papers, 5.2K citations

Raymond Laflamme

63 papers, 12.1K citations

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