Molecular electron-spin quantum computers and quantum information processing: pulse-based electron magnetic resonance spin technology applied to matter spin-qubits

2009 ◽  
Vol 19 (22) ◽  
pp. 3739 ◽  
Author(s):  
Kazunobu Sato ◽  
Shigeaki Nakazawa ◽  
Robabeh Rahimi ◽  
Tomoaki Ise ◽  
Shinsuke Nishida ◽  
...  
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Magnetic Resonance ◽  
Electron Spin ◽  
Quantum Information Processing ◽  
Quantum Computers ◽  
Spin Qubits ◽  
Spin Quantum ◽  
Molecular Electron ◽  
Resonance Spin

NMR quantum information processing and entanglement

2002 ◽  
Vol 2 (2) ◽  
pp. 166-176
Author(s):  
R. Laflamme ◽  
D. Cory ◽  
C. Negrevergne ◽  
L. Viola
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Information Processing ◽  
Quantum Information ◽  
Magnetic Resonance ◽  
Liquid State ◽  
Quantum Information Processing ◽  
Quantum Computers ◽  
The Future ◽  
Nuclear Magnetic

In this essay we discuss the issue of quantum information and recent nuclear magnetic resonance (NMR) experiments. We explain why these experiments should be regarded as quantum information processing (QIP) despite the fact that, in present liquid state NMR experiments, no entanglement is found. We comment on how these experiments contribute to the future of QIP and include a brief discussion on the origin of the power of quantum computers.

scholarly journals Recent advances in nuclear magnetic resonance quantum information processing

2012 ◽  
Vol 370 (1976) ◽  
pp. 4620-4635 ◽  
Author(s):  
Ben Criger ◽  
Gina Passante ◽  
Daniel Park ◽  
Raymond Laflamme
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Information Processing ◽  
Quantum Information ◽  
Magnetic Resonance ◽  
Recent Progress ◽  
Quantum Information Processing ◽  
Nuclear Control ◽  
Nuclear Magnetic Resonance Quantum ◽  
Made In ◽  
Nuclear Magnetic

Quantum information processors have the potential to drastically change the way we communicate and process information. Nuclear magnetic resonance (NMR) has been one of the first experimental implementations of quantum information processing (QIP) and continues to be an excellent testbed to develop new QIP techniques. We review the recent progress made in NMR QIP, focusing on decoupling, pulse engineering and indirect nuclear control. These advances have enhanced the capabilities of NMR QIP, and have useful applications in both traditional NMR and other QIP architectures.

scholarly journals Quantum information processing through nuclear magnetic resonance

2005 ◽  
Vol 35 (3a) ◽  
pp. 617-625 ◽  
Author(s):  
J. D. Bulnes ◽  
F. A. Bonk ◽  
R. S. Sarthour ◽  
E. R. de Azevedo ◽  
J. C. C. Freitas ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Information Processing ◽  
Quantum Information ◽  
Magnetic Resonance ◽  
Quantum Information Processing ◽  
Nuclear Magnetic

Introduction and Background

2006 ◽  
Author(s):  
Phillip Kaye ◽  
Raymond Laflamme ◽  
Michele Mosca
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Physics ◽  
Quantum Information Processing ◽  
Quantum Algorithms ◽  
Physical Reality ◽  
Quantum Computers ◽  
Processing Task ◽  
Computing Model ◽  
Physical Task

A computer is a physical device that helps us process information by executing algorithms. An algorithm is a well-defined procedure, with finite description, for realizing an information-processing task. An information-processing task can always be translated into a physical task. When designing complex algorithms and protocols for various information-processing tasks, it is very helpful, perhaps essential, to work with some idealized computing model. However, when studying the true limitations of a computing device, especially for some practical reason, it is important not to forget the relationship between computing and physics. Real computing devices are embodied in a larger and often richer physical reality than is represented by the idealized computing model. Quantum information processing is the result of using the physical reality that quantum theory tells us about for the purposes of performing tasks that were previously thought impossible or infeasible. Devices that perform quantum information processing are known as quantum computers. In this book we examine how quantum computers can be used to solve certain problems more efficiently than can be done with classical computers, and also how this can be done reliably even when there is a possibility for errors to occur. In this first chapter we present some fundamental notions of computation theory and quantum physics that will form the basis for much of what follows. After this brief introduction, we will review the necessary tools from linear algebra in Chapter 2, and detail the framework of quantum mechanics, as relevant to our model of quantum computation, in Chapter 3. In the remainder of the book we examine quantum teleportation, quantum algorithms and quantum error correction in detail. We are often interested in the amount of resources used by a computer to solve a problem, and we refer to this as the complexity of the computation. An important resource for a computer is time. Another resource is space, which refers to the amount of memory used by the computer in performing the computation. We measure the amount of a resource used in a computation for solving a given problem as a function of the length of the input of an instance of that problem.

Sign in / Sign up

Export Citation Format

Share Document