Quantum Squeezing

Quantum Squeezing
Author: Peter D. Drummond,Zbigniew Ficek
Publsiher: Springer Science & Business Media
Total Pages: 378
Release: 2013-03-14
Genre: Science
ISBN: 9783662096451

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Covers the new field of squeezing in quantum fields, encompassing all types of systems in which quantum fluctuations are reduced below those in the normal vacuum state. The first comprehensive overview of the field, it presents the currently known techniques of generating squeezed photon fields, together with treatments of matter field squeezing. Both theory and experiments are treated, together with applications to communications and measurement.

Quantum and Blockchain for Modern Computing Systems Vision and Advancements

Quantum and Blockchain for Modern Computing Systems  Vision and Advancements
Author: Adarsh Kumar,Sukhpal Singh Gill,Ajith Abraham
Publsiher: Springer Nature
Total Pages: 371
Release: 2022-07-21
Genre: Computers
ISBN: 9783031046131

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This book states that blockchain technology provides a secure distributed, peer-to-peer, and decentralized network with advanced cryptography primitives and protocols. The important question that arises in the quantum computing world is to test the existing blockchain networks against quantum attacks and design quantum computing enabled secure blockchain solutions. This book encourages professionals from different fields to provide blockchain and quantum technology-integrated solutions that incorporate low-cost, effective QoS, fast, secure, and futuristic demands. This book has surveyed and proposed approaches that improve quantum computing and cryptography protocols. Quantum computing and quantum science are not just helpful in software but the hardware world as well. To design networks with quantum science, quantum-enabled devices like quantum memories and quantum repeaters can be useful to demonstrate for organizations. For example, designing a single quantum repeater for long-distance quantum communication is useful in reducing the network cost, and ensuring better security levels. This book has introduced the quantum computing and blockchain technology aspects, their integration approaches and future directions.

Quantum Optics IV

Quantum Optics IV
Author: John D. Harvey,Daniel F. Walls
Publsiher: Springer Science & Business Media
Total Pages: 295
Release: 2012-12-06
Genre: Science
ISBN: 9783642714078

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This volume contains notes based on the lectures delivered at the fourth New Zealand Symposium in Laser Physics, held at the University of Waikato, Hamilton, February 10-15, 1986. At this meeting, about 80 physicists work ing in many parts of the world met to discuss topics of current interest in contemporary laser physics and quantum optics. These symposia, which have been held triennially since 1977, have evolved into an important meet ing ground for experimentalists and theoreticians working in a very rapidly developing field. As the format has evolved, the number of participants, in cluding the number from overseas, has grown steadily, and this year a poster session was included for the first time, enabling a far greater range of topics to be discussed than was possible in the limited lecture time available. At this meeting the major interest of the participants concerned the the oretical investigation of squeezed states of the radiation field and the very recently reported experimental observations of such states. Other related ar eas of work reported here include bistability and chaotic behaviour of optical systems, the quantum theory of measurements, optical tests of general rel ativity, and the current technological limitations governing the stabilization of lasers. The editors would like to thank the participants for providing detailed notes for publication shortly after the meeting, and the various organisa tions that have provided financial support.

Advances in Quantum Chemistry Lowdin Volume

Advances in Quantum Chemistry  Lowdin Volume
Author: Anonim
Publsiher: Academic Press
Total Pages: 408
Release: 2017-02-12
Genre: Science
ISBN: 9780128104002

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Advances in Quantum Chemistry: Lowdin Volume presents a series of articles exploring aspects of the application of quantum mechanics to atoms, molecules, and solids. Celebrates Per-Olov Lowdin, who would have been 100 in 2016 Contains papers by many who use his ideas in theoretical chemistry and physics today

Quantum Optomechanics and Nanomechanics

Quantum Optomechanics and Nanomechanics
Author: Pierre-Francois Cohadon,Jack Harris,Leticia Cugliandolo
Publsiher: Oxford University Press, USA
Total Pages: 475
Release: 2020-02-20
Genre: Science
ISBN: 9780198828143

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The Les Houches Summer School in August 2015 covered the emerging fields of cavity optomechanics and quantum nanomechanics. Optomechanics is flourishing and its concepts and techniques are now applied to a wide range of topics. Modern quantum optomechanics was born in the late 1970s in the framework of gravitational wave interferometry, with an initial focus on the quantum limits of displacement measurements. Carlton Caves, Vladimir Braginsky, and others realized that the sensitivity of the anticipated large-scale gravitational-wave interferometers (GWI) was fundamentally limited by the quantum fluctuations of the measurement laser beam. After tremendous experimental progress, the sensitivity of the upcoming next generation of GWI will effectively be limited by quantum noise. In this way, quantum-optomechanical effects will directly affect the operation of what is arguably the world's most impressive precision experiment. However, optomechanics has also gained a life of its own with a focus on the quantum aspects of moving mirrors. Laser light can be used to cool mechanical resonators well below the temperature of its environment. After proof-of-principle demonstrations of this cooling in 2006, a number of systems were used as the field gradually merged with its condensed matter cousin (nanomechanical systems) to try to reach the mechanical quantum ground state, eventually demonstrated in 2010 by pure cryogenic techniques and just one year later by a combination of cryogenic and radiation-pressure cooling. The book covers all aspects -- historical, theoretical, experimental -- of the field, with its applications to quantum measurement, foundations of quantum mechanics and quantum information. It is an essential read for any new researcher in the field.

Spin Squeezing and Non linear Atom Interferometry with Bose Einstein Condensates

Spin Squeezing and Non linear Atom Interferometry with Bose Einstein Condensates
Author: Christian Groß
Publsiher: Springer Science & Business Media
Total Pages: 116
Release: 2012-01-12
Genre: Science
ISBN: 9783642256370

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Interferometry, the most precise measurement technique known today, exploits the wave-like nature of the atoms or photons in the interferometer. As expected from the laws of quantum mechanics, the granular, particle-like features of the individually independent atoms or photons are responsible for the precision limit, the shot noise limit. However this “classical” bound is not fundamental and it is the aim of quantum metrology to overcome it by employing entanglement among the particles. This work reports on the realization of spin-squeezed states suitable for atom interferometry. Spin squeezing was generated on the basis of motional and spin degrees of freedom, whereby the latter allowed the implementation of a full interferometer with quantum-enhanced precision.

Quantum Optics for Beginners

Quantum Optics for Beginners
Author: Zbigniew Ficek,Mohamed Ridza Wahiddin
Publsiher: CRC Press
Total Pages: 350
Release: 2016-04-19
Genre: Mathematics
ISBN: 9789814411769

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Atomic correlations have been studied in physics for over 50 years and known as collective effects until recently when they came to be recognized as a source of entanglement. This is the first book that contains detailed and comprehensive analysis of two currently extensively studied subjects of atomic and quantum physics—atomic correlations and their relations to entanglement between atoms or atomic systems—along with the newest developments in these fields. This book assembles accounts of many phenomena related to or resulting from atomic correlations. The essential language of the book is in terms of density matrices and master equations that provide detailed theoretical treatments and experimental analysis of phenomena such as entanglement between atoms, spontaneously or externally induced atomic coherence, engineering of atomic correlations, storage and controlled transfer of correlations, and dynamics of correlated systems.

Quantum Measurement and Control

Quantum Measurement and Control
Author: Howard M. Wiseman,Gerard J. Milburn
Publsiher: Cambridge University Press
Total Pages: 477
Release: 2010
Genre: Mathematics
ISBN: 9780521804424

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Modern quantum measurement for graduate students and researchers in quantum information, quantum metrology, quantum control and related fields.