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Path integral approach to quantum Brownian motion
We apply the influence-functional method of Feynman and Vernon to the study of Brownian motion at arbitrary temperature. Expand
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Quantum tunnelling in a dissipative system
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An Introduction to Macroscopic Quantum Phenomena and Quantum Dissipation
Preface 1. Introduction 2. Elements of magnetism 3. Elements of superconductivity 4. Brownian motion 5. Models for quantum dissipation 6. Implementation of the propagator approach 7. The dampedExpand
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Non-Markovian dynamics of quantum discord
We evaluate the quantum discord dynamics of two qubits in independent and common non-Markovian environments. We compare the dynamics of entanglement with that of quantum discord. For independentExpand
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Exact diagonalization of two quantum models for the damped harmonic oscillator
The damped harmonic oscillator is a workhorse for the study of dissipation in quantum mechanics. However, despite its simplicity, this system has given rise to some approximations whose validity andExpand
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Effective quantum dynamics of two Brownian particles
We use the system-plus-reservoir approach to study the quantum dynamics of a bipartite continuous variable system (two generic particles). We present an extension of the traditional model of a bathExpand
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Dynamics of topological defects in a spiral: a scenario for the spin-glass phase of cuprates.
We propose that the dissipative dynamics of topological defects in a spiral state is responsible for the transport properties in the spin-glass phase of cuprates. Using the collective-coordinateExpand
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Dissipative dynamics of topological defects in frustrated Heisenberg spin systems
We study the dynamics of topological defects of a frustrated spin system displaying spiral order. As a starting point we consider the $SO(3)$ nonlinear sigma model to describe long-wavelengthExpand
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Conservation law for distributed entanglement of formation and quantum discord
We present a direct relation, based upon a monogamic principle, between entanglement of formation (EOF) and quantum discord (QD), showing how they are distributed in an arbitrary tripartite pureExpand
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