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- Publications
- Influence
Path integral approach to quantum Brownian motion
- A. Caldeira, A. Leggett
- Physics, Mathematics
- 1 September 1983
TLDR
Influence of Dissipation on Quantum Tunneling in Macroscopic Systems
- A. Caldeira, A. Leggett
- Physics
- 26 January 1981
An Introduction to Macroscopic Quantum Phenomena and Quantum Dissipation
- A. Caldeira
- Physics
- 12 May 2014
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 damped… Expand
Non-Markovian dynamics of quantum discord
- F. Fanchini, T. Werlang, C. Brasil, L. G. E. Arruda, A. Caldeira
- Physics
- 5 November 2009
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 independent… Expand
Exact diagonalization of two quantum models for the damped harmonic oscillator
- M. D. Costa, A. Caldeira, S. M. Dutra, H. Westfahl
- Physics
- 5 March 1999
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 and… Expand
Effective quantum dynamics of two Brownian particles
- O. Duarte, A. Caldeira
- Physics
- 30 May 2009
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 bath… Expand
Dynamics of topological defects in a spiral: a scenario for the spin-glass phase of cuprates.
- V. Juričič, L. Benfatto, A. Caldeira, C. Morais Smith
- Physics, Medicine
- Physical review letters
- 11 June 2003
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-coordinate… Expand
Dissipative dynamics of topological defects in frustrated Heisenberg spin systems
- V. Juričič, L. Benfatto, A. Caldeira, C. M. Smith
- Physics
- 4 October 2004
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-wavelength… Expand
Conservation law for distributed entanglement of formation and quantum discord
- F. Fanchini, M. F. Cornelio, M. Oliveira, A. Caldeira
- Physics
- 12 June 2010
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 pure… Expand