Exploring Quantum Foundations with Single Photons

Exploring Quantum Foundations with Single Photons PDF

Author: Martin Ringbauer

Publisher: Springer

Published: 2017-08-21

Total Pages: 208

ISBN-13: 3319649884

DOWNLOAD EBOOK →

This thesis uses high-precision single-photon experiments to shed new light on the role of reality, causality, and uncertainty in quantum mechanics. It provides a comprehensive introduction to the current understanding of quantum foundations and details three influential experiments that significantly advance our understanding of three core aspects of this problem. The first experiment demonstrates that the quantum wavefunction is part of objective reality, if there is any such reality in our world. The second experiment shows that quantum correlations cannot be explained in terms of cause and effect, even when considering superluminal influences between measurement outcomes. The final experiment in this thesis demonstrates a novel uncertainty relation for joint quantum measurements, where the textbook relation does not apply.

Exploring the Quantum

Exploring the Quantum PDF

Author: Serge Haroche

Publisher: OUP Oxford

Published: 2006-08-11

Total Pages: 616

ISBN-13: 0191523240

DOWNLOAD EBOOK →

The counter-intuitive aspects of quantum physics have been long illustrated by thought experiments, from Einstein's photon box to Schrödinger's cat. These experiments have now become real, with single particles - electrons, atoms, or photons - directly unveiling the strange features of the quantum. State superpositions, entanglement and complementarity define a novel quantum logic which can be harnessed for information processing, raising great hopes for applications. This book describes a class of such thought experiments made real. Juggling with atoms and photons confined in cavities, ions or cold atoms in traps, is here an incentive to shed a new light on the basic concepts of quantum physics. Measurement processes and decoherence at the quantum-classical boundary are highlighted. This volume, which combines theory and experiments, will be of interest to students in quantum physics, teachers seeking illustrations for their lectures and new problem sets, researchers in quantum optics and quantum information.

Conceptual Foundations of Quantum Physics

Conceptual Foundations of Quantum Physics PDF

Author: Dipankar Home

Publisher: Springer Science & Business Media

Published: 1997-11-30

Total Pages: 416

ISBN-13: 9780306456602

DOWNLOAD EBOOK →

This fascinating work goes beyond the standard interpretation of quantum theory to explore its fundamental concepts. Author Dipankar Home examines such alternative schemes as the Bohmian approach, the decoherence models, and the dynamical models of wave function collapse. Home carefully explains how a number of the anomalies in quantum theory have become amenable to precise quantitative formulations Throughout the chapters, the emphasis is on conceptual aspects of quantum theory and the implications of recent investigations into these questions.

Quantum Mechanics in the Single Photon Laboratory

Quantum Mechanics in the Single Photon Laboratory PDF

Author: Muhammad Hamza Waseem

Publisher:

Published: 2020-07-16

Total Pages: 184

ISBN-13: 9780750330640

DOWNLOAD EBOOK →

Arising from a series of laboratory class experiments developed by the authors, this book provides an overview of fundamental experiments that can be used to practically demonstrate the underlying principles of quantum physics and quantum information science. Designed with multiple readerships in mind, it will be essential for the professor who would like to recreate a similar suite of experiments for their students as well as students of physics, who would like to learn how such experiments are conducted. Computer scientists, photonics engineers and electrical engineers who would like to foray into quantum technologies would also find this narrative useful to learn about the terminology, key postulates of quantum physics, the collapse of states on measurement and how quantum computers could be implemented. Key Features Accompanied by downloadable code and data from real experiments for readers to manipulate, plot and compute expectation values, errors and density matrices. Includes worked examples demonstrating basic calculations on computing probabilities from projective measurements, effect of unitary operators on states, computing density matrices, and expectation values, fidelities and purities. Features end-of-chapter problems Incorporates overviews and learning objectives for each chapter Essential reading for students of quantum physics and modern optics

Foundations of Quantum Mechanics

Foundations of Quantum Mechanics PDF

Author: Travis Norsen

Publisher: Springer

Published: 2017-08-17

Total Pages: 310

ISBN-13: 3319658670

DOWNLOAD EBOOK →

Authored by an acclaimed teacher of quantum physics and philosophy, this textbook pays special attention to the aspects that many courses sweep under the carpet. Traditional courses in quantum mechanics teach students how to use the quantum formalism to make calculations. But even the best students - indeed, especially the best students - emerge rather confused about what, exactly, the theory says is going on, physically, in microscopic systems. This supplementary textbook is designed to help such students understand that they are not alone in their confusions (luminaries such as Albert Einstein, Erwin Schroedinger, and John Stewart Bell having shared them), to sharpen their understanding of the most important difficulties associated with interpreting quantum theory in a realistic manner, and to introduce them to the most promising attempts to formulate the theory in a way that is physically clear and coherent. The text is accessible to students with at least one semester of prior exposure to quantum (or "modern") physics and includes over a hundred engaging end-of-chapter "Projects" that make the book suitable for either a traditional classroom or for self-study.

Adventures In Quantumland: Exploring Our Unseen Reality

Adventures In Quantumland: Exploring Our Unseen Reality PDF

Author: Ruth E Kastner

Publisher: World Scientific

Published: 2019-04-17

Total Pages: 351

ISBN-13: 1786346435

DOWNLOAD EBOOK →

This title is a self-contained follow-up to Understanding Our Unseen Reality: Solving Quantum Riddles (2015). Intended for the general reader but including more advanced material and an appendix of technical references for physics students and researchers, it reviews the basics of the transactional interpretation of quantum mechanics in its newer incarnation as a fully relativistic, realist interpretation of quantum theory, while embarking on further explorations of the implications of quantum theory. This interpretation is applied to new experiments and alleged 'paradoxes' that are found to be fully explicable once various misconceptions are identified.There is currently much disagreement about the meaning of quantum theory, as well as confusion about the implications of various experiments such as 'weak measurements,' 'quantum eraser,' and delayed choice. This book provides a clear way forward, presenting new developments and elaborating a promising interpretational approach that has completely nullified earlier objections (such as the Maudlin objection). It also explains why some prominent competing interpretations, such as 'decoherence' in an Everettian ('Many Worlds') approach, do not work as advertised.Adventures in Quantumland: Exploring Our Unseen Reality offers a fully relativistic interpretation of quantum mechanics with no discontinuity between non-relativistic and relativistic domains and shows how quantum theory allows for free will and for reconciliation of science and spiritual traditions.Related Link(s)

Photons

Photons PDF

Author: Klaus Hentschel

Publisher: Springer

Published: 2018-08-16

Total Pages: 231

ISBN-13: 3319952528

DOWNLOAD EBOOK →

This book focuses on the gradual formation of the concept of ‘light quanta’ or ‘photons’, as they have usually been called in English since 1926. The great number of synonyms that have been used by physicists to denote this concept indicates that there are many different mental models of what ‘light quanta’ are: simply finite, ‘quantized packages of energy’ or ‘bullets of light’? ‘Atoms of light’ or ‘molecules of light’? ‘Light corpuscles’ or ‘quantized waves’? Singularities of the field or spatially extended structures able to interfere? ‘Photons’ in G.N. Lewis’s sense, or as defined by QED, i.e. virtual exchange particles transmitting the electromagnetic force? The term ‘light quantum’ made its first appearance in Albert Einstein’s 1905 paper on a “heuristic point of view” to cope with the photoelectric effect and other forms of interaction of light and matter, but the mental model associated with it has a rich history both before and after 1905. Some of its semantic layers go as far back as Newton and Kepler, some are only fully expressed several decades later, while others initially increased in importance then diminished and finally vanished. In conjunction with these various terms, several mental models of light quanta were developed—six of them are explored more closely in this book. It discusses two historiographic approaches to the problem of concept formation: (a) the author’s own model of conceptual development as a series of semantic accretions and (b) Mark Turner’s model of ‘conceptual blending’. Both of these models are shown to be useful and should be explored further. This is the first historiographically sophisticated history of the fully fledged concept and all of its twelve semantic layers. It systematically combines the history of science with the history of terms and a philosophically inspired history of ideas in conjunction with insights from cognitive science.

Quantum Foundations And Open Quantum Systems: Lecture Notes Of The Advanced School

Quantum Foundations And Open Quantum Systems: Lecture Notes Of The Advanced School PDF

Author: Theo M Nieuwenhuizen

Publisher: World Scientific

Published: 2014-10-03

Total Pages: 612

ISBN-13: 9814616745

DOWNLOAD EBOOK →

The Advanced School on Quantum Foundations and Open Quantum Systems was an exceptional combination of lectures. These comprise lectures in standard physics and investigations on the foundations of quantum physics.On the one hand it included lectures on quantum information, quantum open systems, quantum transport and quantum solid state. On the other hand it included lectures on quantum measurement, models for elementary particles, sub-quantum structures and aspects on the philosophy and principles of quantum physics.The special program of this school offered a broad outlook on the current and near future fundamental research in theoretical physics.The lectures are at the level of PhD students.

Foundations of Quantum Mechanics

Foundations of Quantum Mechanics PDF

Author: Reinhold Blumel

Publisher: Jones & Bartlett Learning

Published: 2010

Total Pages: 344

ISBN-13: 0763776289

DOWNLOAD EBOOK →

Quantum computers are the proposed centerpieces of a revolutionary, 21st-century quantum information technology. This book takes the reader into the world of quantum mechanics and continues on an in-depth study of quantum information and quantum computing, including the future of quantum technology. This text focuses on what is "quantum" about quantum mechanics; topics discussed include the EPR paradox, entanglement, teleportation, Bell's Theorem, quantum computing, and code-breaking with quantum computers.--Back cover.

Quantum Mechanics

Quantum Mechanics PDF

Author: Mark Beck

Publisher: Oxford University Press

Published: 2012-07-01

Total Pages: 480

ISBN-13: 0199798230

DOWNLOAD EBOOK →

This textbook presents quantum mechanics at the junior/senior undergraduate level. It is unique in that it describes not only quantum theory, but also presents five laboratories that explore truly modern aspects of quantum mechanics. These laboratories include "proving" that light contains photons, single-photon interference, and tests of local realism. The text begins by presenting the classical theory of polarization, moving on to describe the quantum theory of polarization. Analogies between the two theories minimize conceptual difficulties that students typically have when first presented with quantum mechanics. Furthermore, because the laboratories involve studying photons, using photon polarization as a prototypical quantum system allows the laboratory work to be closely integrated with the coursework. Polarization represents a two-dimensional quantum system, so the introduction to quantum mechanics uses two-dimensional state vectors and operators. This allows students to become comfortable with the mathematics of a relatively simple system, before moving on to more complicated systems. After describing polarization, the text goes on to describe spin systems, time evolution, continuous variable systems (particle in a box, harmonic oscillator, hydrogen atom, etc.), and perturbation theory. The book also includes chapters which describe material that is frequently absent from undergraduate texts: quantum measurement, entanglement, quantum field theory and quantum information. This material is connected not only to the laboratories described in the text, but also to other recent experiments. Other subjects covered that do not often make their way into undergraduate texts are coherence, complementarity, mixed states, the density operator and coherent states. Supplementary material includes further details about implementing the laboratories, including parts lists and software for running the experiments. Computer simulations of some of the experiments are available as well. A solutions manual for end-of-chapter problems is available to instructors.