Realizing an Andreev Spin Qubit

Realizing an Andreev Spin Qubit PDF Author: Max Hays
Publisher: Springer Nature
ISBN: 303083879X
Category : Science
Languages : en
Pages : 200

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Book Description
The thesis gives the first experimental demonstration of a new quantum bit (“qubit”) that fuses two promising physical implementations for the storage and manipulation of quantum information – the electromagnetic modes of superconducting circuits, and the spins of electrons trapped in semiconductor quantum dots – and has the potential to inherit beneficial aspects of both. This new qubit consists of the spin of an individual superconducting quasiparticle trapped in a Josephson junction made from a semiconductor nanowire. Due to spin-orbit coupling in the nanowire, the supercurrent flowing through the nanowire depends on the quasiparticle spin state. This thesis shows how to harness this spin-dependent supercurrent to achieve both spin detection and coherent spin manipulation. This thesis also represents a significant advancement to our understanding and control of Andreev levels and thus of superconductivity. Andreev levels, microscopic fermionic modes that exist in all Josephson junctions, are the microscopic origin of the famous Josephson effect, and are also the parent states of Majorana modes in the nanowire junctions investigated in this thesis. The results in this thesis are therefore crucial for the development of Majorana-based topological information processing.

Realizing an Andreev Spin Qubit

Realizing an Andreev Spin Qubit PDF Author: Max Hays
Publisher: Springer Nature
ISBN: 303083879X
Category : Science
Languages : en
Pages : 200

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Book Description
The thesis gives the first experimental demonstration of a new quantum bit (“qubit”) that fuses two promising physical implementations for the storage and manipulation of quantum information – the electromagnetic modes of superconducting circuits, and the spins of electrons trapped in semiconductor quantum dots – and has the potential to inherit beneficial aspects of both. This new qubit consists of the spin of an individual superconducting quasiparticle trapped in a Josephson junction made from a semiconductor nanowire. Due to spin-orbit coupling in the nanowire, the supercurrent flowing through the nanowire depends on the quasiparticle spin state. This thesis shows how to harness this spin-dependent supercurrent to achieve both spin detection and coherent spin manipulation. This thesis also represents a significant advancement to our understanding and control of Andreev levels and thus of superconductivity. Andreev levels, microscopic fermionic modes that exist in all Josephson junctions, are the microscopic origin of the famous Josephson effect, and are also the parent states of Majorana modes in the nanowire junctions investigated in this thesis. The results in this thesis are therefore crucial for the development of Majorana-based topological information processing.

Comprehensive Semiconductor Science and Technology

Comprehensive Semiconductor Science and Technology PDF Author:
Publisher: Elsevier
ISBN: 0323958192
Category : Technology & Engineering
Languages : en
Pages : 2153

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Book Description
Semiconductors are at the heart of modern living. Almost everything we do, be it work, travel, communication, or entertainment, all depend on some feature of semiconductor technology. Comprehensive Semiconductor Science and Technology, Second Edition, Three Volume Set captures the breadth of this important field and presents it in a single source to the large audience who study, make, and use semiconductor devices. Written and edited by a truly international team of experts and newly updated to capture key advancements in the field, this work delivers an objective yet cohesive review of the semiconductor world.The work is divided into three sections, fully updated and expanded from the first edition. The first section is concerned with the fundamental physics of semiconductors, showing how the electronic features and the lattice dynamics change drastically when systems vary from bulk to a low-dimensional structure and further to a nanometer size. Throughout this section there is an emphasis on the full understanding of the underlying physics, especially quantum phenomena. The second section deals largely with the transformation of the conceptual framework of solid-state physics into devices and systems, which require the growth of high-purity or doped, bulk and epitaxial materials with low defect density and well-controlled electrical and optical properties. The third section is devoted to design, fabrication and assessment of discrete and integrated semiconductor devices. It will cover the entire spectrum of devices we see all around us, for telecommunications, computing, automation, displays, illumination and consumer electronics. - Provides a comprehensive global picture of the semiconductor world - Written and Edited by an international team of experts - Compiles the most important semiconductor knowledge into one comprehensive resource - Moves from fundamentals and theory to more advanced knowledge, such as applications, allowing readers to gain a deeper understanding of the field

New Trends and Platforms for Quantum Technologies

New Trends and Platforms for Quantum Technologies PDF Author: Ramón Aguado
Publisher: Springer Nature
ISBN: 3031556577
Category :
Languages : en
Pages : 293

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Book Description


Self-Assembled Quantum Dots

Self-Assembled Quantum Dots PDF Author: Zhiming M Wang
Publisher: Springer Science & Business Media
ISBN: 0387741917
Category : Technology & Engineering
Languages : en
Pages : 470

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Book Description
This multidisciplinary book provides up-to-date coverage of carrier and spin dynamics and energy transfer and structural interaction among nanostructures. Coverage also includes current device applications such as quantum dot lasers and detectors, as well as future applications to quantum information processing. The book will serve as a reference for anyone working with or planning to work with quantum dots.

Realizing Controllable Quantum States - Proceedings Of The International Symposium On Mesoscopic Superconductivity And Spintronics - In The Light Of Quantum Computation

Realizing Controllable Quantum States - Proceedings Of The International Symposium On Mesoscopic Superconductivity And Spintronics - In The Light Of Quantum Computation PDF Author: Junsaku Nitta
Publisher: World Scientific
ISBN: 9814479500
Category : Science
Languages : en
Pages : 515

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Book Description
This volume is a collection of papers from the third meeting of the international symposium on mesoscopic superconductivity and spintronics. Research on quantum information technology has advanced a great deal since the previous meeting. Mesoscopic physics, such as spins in nano-scale semiconductor structures, micro-fabricated superconducting junctions and extraordinary metal contacts have now been not only theoretically but also experimentally established as important solid-state elements of quantum information devices. The book also contains some papers on information theory from the viewpoint of quantum algorithms, indicating that further collaboration between physics and computer science promises to produce fruitful results in quantum information technology.

Digest

Digest PDF Author:
Publisher:
ISBN:
Category : Integrated circuits
Languages : en
Pages : 204

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Book Description


Nanofabrication Handbook

Nanofabrication Handbook PDF Author: Stefano Cabrini
Publisher: CRC Press
ISBN: 1420090534
Category : Science
Languages : en
Pages : 534

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Book Description
While many books are dedicated to individual aspects of nanofabrication, there is no single source that defines and explains the total vision of the field. Filling this gap, Nanofabrication Handbook presents a unique collection of new and the most important established approaches to nanofabrication. Contributors from leading research facilities and

Quench Dynamics in Interacting and Superconducting Nanojunctions

Quench Dynamics in Interacting and Superconducting Nanojunctions PDF Author: Rubén Seoane Souto
Publisher: Springer Nature
ISBN: 3030365956
Category : Technology & Engineering
Languages : en
Pages : 226

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Book Description
Effects of many-body interactions and superconducting correlations have become central questions in the quantum transport community. While most previous works investigating current fluctuations in nanodevices have been restricted to the stationary regime, Seoane's thesis extends these studies to the time domain. It provides relevant information about the time onset of electronic correlations mediated by interactions and superconductivity. This knowledge is essential for the development of fast electronic devices, as well as novel applications requiring fast manipulations, such as quantum information processing. In addition, the thesis establishes contact with issues of broad current interest such as non-equilibrium quantum phase transitions.

Foundations Of Quantum Mechanics In The Light Of New Technology: Isqm-tokyo '05 - Proceedings Of The 8th International Symposium

Foundations Of Quantum Mechanics In The Light Of New Technology: Isqm-tokyo '05 - Proceedings Of The 8th International Symposium PDF Author: Sachio Ishioka
Publisher: World Scientific
ISBN: 9814477605
Category : Science
Languages : en
Pages : 337

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Book Description
The goal of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology was to link recent advances in technology with fundamental problems and issues in quantum mechanics with an emphasis on quantum coherence, decoherence, and geometrical phase.The papers collected in this volume cover a wide range of quantum physics, including quantum information and entanglement, quantum computing, quantum-dot systems, the anomalous Hall effect and the spin-Hall effect, spin related phenomena, superconductivity in nano-systems, precise measurements, and fundamental problems. The volume serves both as an excellent reference for experts and a useful introduction for newcomers to the field of quantum coherence and decoherence.

Journal of the Physical Society of Japan

Journal of the Physical Society of Japan PDF Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 758

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Book Description