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Thursday, May 14, 2020 | History

2 edition of Decoherence, quantum-classical correspondence, and coherent control in molecular dynamics. found in the catalog.

Decoherence, quantum-classical correspondence, and coherent control in molecular dynamics.

Heekyung Han

Decoherence, quantum-classical correspondence, and coherent control in molecular dynamics.

by Heekyung Han

  • 162 Want to read
  • 23 Currently reading

Published .
Written in English


About the Edition

Next, quantum-classical correspondence in intrinsic decoherence dynamics is examined via purities and reduced density matrices in both the position and energy representations. Dependence of the correspondence on the nature of the coupling potentials and on the initial conditions are discussed.Decoherence effects on quantum and classical dynamics in reactive scattering problems are investigated. Through the study of dynamics of the isotopic analogues of the collinear H + H2 reaction and transmission over simple one-dimensional barrier potentials, the role of decoherence in improving quantum-classical correspondence is identified with suppressing resonance and tunnelling.Finally, the efficiency of 1+3 photon phase control in the presence of decoherence effects phase is carefully examined in several model cases which include from a population inversion in a two-level bound system to IBr photodissociation. Further, the ways to overcome the control loss caused by dephasing are discussed.

The Physical Object
Pagination245 leaves.
Number of Pages245
ID Numbers
Open LibraryOL20339129M
ISBN 100612917053

This review focuses on quantum-classical Liouville dynamics, one of several quantum-classical descriptions, and discusses the problems that arise when one attempts to combine quantum and classical mechanics, coherence and decoherence in quantum-classical systems, nonadiabatic dynamics, surface-hopping and mean-field theories and their relation Cited by: 7. The tools needed to elucidate the quantum-to-classical transition via the process of decoherence—that is, turning a pure, or coherent, quantum state into a statistical mixture—involve a full arsenal of the typical features peculiar to quantum mechanics: superposition, entanglement, nonclassical correlations, superselection, and so by: 1.

A. Quantum conditional dynamics 5 1. Controlled not and a bit-by-bit measurement 6 2. Measurements and controlled shifts. 7 3. Amplification 7 B. Information transfer in measurements 9 1. Action per bit 9 C. “Collapse” analogue in a classical measurement 9 III. CHAOS AND LOSS OF CORRESPONDENCE 11 A. Loss of the quantum-classical Cited by: "This book is essential for anyone who is working in the quantum-classical divide. Most of the material is written in a pedagogical style so that it can easily be used as an aid to start ones research in this field. The size of the reference list is impressive ." (y, Contemporary Physics, Vol. 46 (2) )Brand: Springer-Verlag Berlin Heidelberg.

"Decoherence in Combined Quantum Mechanical and Classical Mechanical Methods for Dynamics as Illustrated for Non-Born-Oppenheimer Trajectories," D. G. Truhlar, in Quantum Dynamics of Complex Molecular Systems, edited by D. A. Micha and I. Burghardt, Sprin\ ger Series in Chemical Physics, Vol. 83 \(Springer, Berlin, \), pp. Quantum Coherence in Biological Systems Elisabeth Rieper Diplom Physikerin, Universita¨t Braunschweig, Germany Centre for Quantum Technologies National University of Singapore A thesis submitted for the degree of PhilosophiæDoctor (PhD)


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Decoherence, quantum-classical correspondence, and coherent control in molecular dynamics by Heekyung Han Download PDF EPUB FB2

Written in a lucid and concise style that is accessible to all readers with a basic knowledge Decoherence quantum mechanics, this stimulating book tells the "classical from quantum" story in a comprehensive and coherent manner that brings together the foundational, technical, and experimental aspects of by: "This book is essential for anyone who is working in the quantum-classical divide." (Contemporary Physics46, page ) "The goal Decoherence this collective book is the understanding, in the framework of quantum mechanics, of the appearance of our macroscopic classical world .Cited by: Written in a lucid and concise style that is accessible to all readers with a basic knowledge of quantum mechanics, this stimulating book tells the "classical from quantum" story in a comprehensive and coherent manner that brings together the foundational, technical, and experimental aspects of : Springer-Verlag Berlin Heidelberg.

Coherent Control, Quantum Chaos, and Decoherence in Molecular Dynamics Mensive coherent control of quantum chaotic diffusion in periodically kicked dynam- ics is demonstrated in both a paradigm of quantum chaos and molecuiar systems in pulsed microwave fields.

The origin of the control in deviations from random matrixAuthor: Jiangbin Gong. Abstract: The environment -- external or internal degrees of freedom coupled to the system -- can, in effect, monitor some of its observables.

As a result, the eigenstates of these observables decohere and behave like classical states: Continuous destruction of superpositions leads to environment-induced superselection (einselection).Cited by: III. Chaos and Loss of Correspondence A.

Loss of quantum-classical correspondence B. Moyal bracket and Liouville flow C. Symptoms of correspondence loss 1. Expectation values 2. Structure saturation IV. Environment-Induced Superselection A.

Models of einselection 1. Decoherence of a single qubit 2. Decoherence is the most significant obstacle of expanding quantum technology. It appears as a result of an interaction of the quantum system of Cited by: 7. Coherent control of molecular dynamics. 3 Author to whom correspondence should be addressed.

4 Also at: We review the principles and some recent advances in the theory of coherent control of molecular processes and discuss some of its experimental by: DECOHERENCE, SUPERCONDUCTING QUBITS, AND THE POSSIBILITY OF QUANTUM COMPUTING - DRAFT Jacob Portes November or characterize the system dynamics.

But what about to can be found in To oli’s book Reversible Computing [40]. A more recent book File Size: 2MB. INSTITUTE OF PHYSICS PUBLISHING REPORTS ON PROGRESS IN PHYSICS Rep.

Prog. Phys. 66 () – PII: S(03) Coherent control of molecular dynamics Moshe Shapiro1,3 4 and Paul Brumer2 1 Department of Chemical Physics, The Weizmann Institute, RehovotIsrael 2 Chemical Physics Theory Group, Department of Chemistry, 80 St George St., Cited by: Decoherence and the Transition from Quantum to Classical—Revisited.

chaotic dynamics and decoherence, and most recently, the tantalizing glimpses of the information-theoretic nature of the quantum have elucidated our understanding of the Universe.

During this period, Los Alamos has grown into a leading center tives—not a coherent. Decoherence offers a theoretical framework in which the measurement problem can be swept under the carpet (pushed into a system larger than that which we can observe).

The effect is that quantum mechanics can be studied and presented to a student without the need for the ad hoc ``wave collapse'' being presented as a primary tool of the theory. the environment caused by; (a) “reduction of the state vector”, i.

e., decoherence of the observer’s record states, and; (b) through the more usual channel – decoherence in the monitored system. Quantumpredictabilityhorizon: How the correspondence is lost. As a result of chaotic evolution, a patch in the phase space which corresponds toCited by: classical-quantum correspondence with the introduction of decoherence, even though the initial quantum dy- namics is far from the semiclassical limit.

关 SX 共 99 兲 兴. Abstract. Given a system with a limited number of degrees of freedom, together with its interaction with the environment; can one evaluate a critical time (decoherence time) within which the system behaves fully quantum mechanically (including Einstein-Podolsky-Rosen (EPR)—entanglements), and after which it displays quasi-classical features?Author: F.

Tito Arecchi. grantor: University of Toronto. TSpace. TSpace is a free and secure research repository established by University of Toronto Libraries to disseminate and preserve the scholarly record of University of : Jiangbin Gong. Decoherence is the most significant obstacle of expanding quantum technology.

It appears as a result of an interaction of the quantum system of our interest with an environment 1,2, most common source of the decoherence is dephasing reducing a quantum Cited by: 7. Purchase Quantum Coherence and Decoherence - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1.

Manipulation of quantum interference requires that the system under control remains coherent, avoiding (or at least postponing) the phase randomization that can ensue from coupling to an uncontrolled environment. We show that closed-loop coherent control can be used to mitigate the rate of quantum dephasing in a gas-phase ensemble of potassium dimers (K2), which acts as a model Cited by:   The book is very comprehensive; I cannot recommend it as a good technical introduction into the subject, though.

Many important developments (such as integro-differential master equations, instanton formalism for decoherence) are not discussed, sometimes only mentioned, and there is way too much philosophy of quantum mechanics (about half of the pp book, by my estimation)/5.

Quantum versus classical decoherence dynamics. quantum mechanically and into the conditions for quantum-classical correspondence in decoherence dynamics. Coherent Control of Atomic.Quantum decoherence is the loss of quantum quantum mechanics, particles such as electrons are described by a wave function, a mathematical representation of the quantum state of a system; a probabilistic interpretation of the wave function is used to explain various quantum long as there exists a definite phase relation between different states, the system is said to be.• Decoherence in the brain.

Written in a lucid and concise style that is accessible to all readers with a basic knowledge of quantum mechanics, this stimulating book tells the "classical from quantum" story in a comprehensive and coherent manner that brings together the foundational, technical, and experimental aspects of decoherence.