Quantum Thermodynamics and Optomechanics

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Release : 2020-09-18
Genre : Science
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Book Rating : 712/5 ( reviews)

Quantum Thermodynamics and Optomechanics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Quantum Thermodynamics and Optomechanics write by Juliette Monsel. This book was released on 2020-09-18. Quantum Thermodynamics and Optomechanics available in PDF, EPUB and Kindle. This thesis demonstrates the potential of two platforms to explore experimentally the emerging field of quantum thermodynamics that has remained mostly theoretical so far. It proposes methods to define and measure work in the quantum regime. The most important part of the thesis focuses on hybrid optomechanical devices, evidencing that they are proper candidates to measure directly the fluctuations of work and the corresponding fluctuation theorem. Such devices could also give rise to the observation of mechanical lasing and cooling, based on mechanisms similar to a heat engine. The final part of the thesis studies how quantum coherence can improve work extraction in superconducting circuits. All the proposals greatly clarify the concept of work since they are based on measurable quantities in state of the art devices.

Thermodynamics of Quantum Open Systems

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Release : 2017
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Thermodynamics of Quantum Open Systems - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Thermodynamics of Quantum Open Systems write by Cyril Elouard. This book was released on 2017. Thermodynamics of Quantum Open Systems available in PDF, EPUB and Kindle. Thermodynamics was developed in the XIXth century to provide a physical description to engines and other macroscopic thermal machines. Since then, progress in nanotechnologies urged to extend these formalism, initially designed for classical systems, to the quantum world. During this thesis, I have built a formalism to study the stochastic thermodynamics of quantum systems, in which quantum measurement plays a central role : like the thermal reservoir of standard stochastic thermodynamics, it is the primary source of randomness in the system's dynamics. I first studied projective measurement as a thermodynamic process. I evidenced that measurement is responsible for an uncontroled variation of the system's energy that I called quantum heat, and also a production of entropy. As a proof of concept, I proposed an engine extracting work from the measurement-induced quantum fluctuations. Then, I extended this formalism to generalized measurements, which allowed to describe open quantum systems (i.e. in contact with reservoirs). I defined work, heat and entropy production for single realizations of thermodynamic protocols, and retrieved that these quantities obey fluctuation theorems. I applied this formalism to the canonical situation of quantum optics, i.e. a Qubit coupled to a laser and a the vacuum. Finally, I studied a promising platform to test Qubit's thermodynamics: a hybrid optomechanical system.The formalism developed in this thesis could be of interest for the quantum thermodynamics community as it enables to characterize quantum heat engines and compare their performances to their classical analogs. Furthermore, as it sets quantum measurement as a thermodynamic process, it pave the ways to a new kind of thermodynamic machines, exploiting the specificities of quantum realm in an unprecedented way.

Thermodynamics and Control of Open Quantum Systems

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Release : 2022-01-13
Genre : Science
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Book Rating : 572/5 ( reviews)

Thermodynamics and Control of Open Quantum Systems - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Thermodynamics and Control of Open Quantum Systems write by Gershon Kurizki. This book was released on 2022-01-13. Thermodynamics and Control of Open Quantum Systems available in PDF, EPUB and Kindle. The control of open quantum systems and their associated quantum thermodynamic properties is a topic of growing importance in modern quantum physics and quantum chemistry research. This unique and self-contained book presents a unifying perspective of such open quantum systems, first describing the fundamental theory behind these formidably complex systems, before introducing the models and techniques that are employed to control their quantum thermodynamics processes. A detailed discussion of real quantum devices is also covered, including quantum heat engines and quantum refrigerators. The theory of open quantum systems is developed pedagogically, from first principles, and the book is accessible to graduate students and researchers working in atomic physics, quantum information, condensed matter physics, and quantum chemistry.

Quantum Thermodynamics

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Release : 2019-07-02
Genre : Science
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Book Rating : 581/5 ( reviews)

Quantum Thermodynamics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Quantum Thermodynamics write by Sebastian Deffner. This book was released on 2019-07-02. Quantum Thermodynamics available in PDF, EPUB and Kindle. This book provides an introduction to the emerging field of quantum thermodynamics, with particular focus on its relation to quantum information and its implications for quantum computers and next generation quantum technologies. The text, aimed at graduate level physics students with a working knowledge of quantum mechanics and statistical physics, provides a brief overview of the development of classical thermodynamics and its quantum formulation in Chapter 1. Chapter 2 then explores typical thermodynamic settings, such as cycles and work extraction protocols, when the working material is genuinely quantum. Finally, Chapter 3 explores the thermodynamics of quantum information processing and introduces the reader to some more state of-the-art topics in this exciting and rapidly developing research field.

Quantum Optics

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Release : 2021-07-24
Genre : Science
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Book Rating : 835/5 ( reviews)

Quantum Optics - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Quantum Optics write by Pierre Meystre. This book was released on 2021-07-24. Quantum Optics available in PDF, EPUB and Kindle. This book is a thoroughly modern and highly pedagogical graduate-level introduction to quantum optics, a subject which has witnessed stunning developments in recent years and has come to occupy a central role in the 'second quantum revolution'. The reader is invited to explore the fundamental role that quantum optics plays in the control and manipulation of quantum systems, leading to ultracold atoms, circuit QED, quantum information science, quantum optomechanics, and quantum metrology. The building blocks of the subject are presented in a sequential fashion, starting from the simplest physical situations before moving to increasingly complicated ones. This pedagogically appealing approach leads to quantum entanglement and measurement theory being introduced early on and before more specialized topics such as cavity QED or laser cooling. The final chapter illustrates the power of scientific cross-fertilization by surveying cutting-edge applications of quantum optics and optomechanics in gravitational wave detection, tests of fundamental physics, searches for dark matter, geophysical monitoring, and ultraprecise clocks. Complete with worked examples and exercises, this book provides the reader with enough background knowledge and understanding to follow the current journal literature and begin producing their own original research.