Results 51 to 60 of about 24,094,261 (287)
Scarring in open quantum systems
Physical Review E, 2008 We study scarring phenomena in open quantum systems. We show numerical evidence that individual resonance eigenstates of an open quantum system present localization around unstable short periodic orbits in a similar way as their closed counterparts. The structure of eigenfunctions around these classical objects is not destroyed by the opening.
Wisniacki, Diego Ariel +1 more
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High fidelity quantum gates of trapped ions in the presence of motional heating
New Journal of Physics, 2016 We describe entangling quantum gates for trapped ions mediated by a dissipative bus mode and show that suitably designed, polychromatic control pulses decrease ion-phonon entanglement substantially while maintaining the mediated interaction.
Farhang Haddadfarshi, Florian Mintert
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Nonlinear dynamics of open quantum systems
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018 The evolution of a composite closed system using the integral wave equation with the kernel in the form of path integral is considered. It is supposed that a quantum particle is a subsystem of this system.
Alexey Yu Samarin
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Hamiltonian assignment for open quantum systems
Physical Review Research, 2020 We investigate the problem of determining the Hamiltonian of a locally interacting open quantum system. To do so, we construct Hamiltonian estimators based on inverting a set of stationary, or dynamical, Heisenberg-Langevin equations of motion which rely
Eugene F. Dumitrescu, Pavel Lougovski
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Thermodynamic length in open quantum systems [PDF]
Quantum, 2019 The dissipation generated during a quasistatic thermodynamic process can be characterised by introducing a metric on the space of Gibbs states, in such a way that minimally-dissipating protocols correspond to geodesic trajectories.
Matteo Scandi, Martí Perarnau-Llobet
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Results in Physics, 2022 We consider a finite two-dimensional Heisenberg triangular spin lattice coupled to a dissipative Markovian environment at finite temperature in the presence of an external uniform magnetic field.
Gehad Sadiek, Maryam AlQasimi
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Embedding the Yang-Lee quantum criticality in open quantum systems
Physical Review Research, 2022 The Yang-Lee edge singularity is a quintessential nonunitary critical phenomenon characterized by anomalous scaling. However, an imaginary magnetic field involved in this phenomenon makes its physical implementation nontrivial.
Norifumi Matsumoto +2 more
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Explaining the Unobserved: Why Quantum Mechanics Is Not only About Information [PDF]
, 2005 A remarkable theorem by Clifton, Bub and Halverson (2003) (CBH) characterizes quantum theory in terms of information--theoretic principles. According to Bub (2004, 2005) the philosophical significance of the theorem is that quantum theory should be ...
Amit Hagar +3 more
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, 2023 In this Bachelor thesis project, the Lindblad master equation is derived, both as the most general way of modeling interaction with an environment that lacks memory, and through microscopic derivations focused on assumptions about the way the system interacts with its environment (weak-coupling, Born-Markov and rotating wave approximations). It is then
Bahns, Dorothea +2 more
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Entropy, 2022 Quantum memory effects can be qualitatively understood as a consequence of an environment-to-system backflow of information. Here, we analyze and compare how this concept is interpreted and implemented in different approaches to quantum non-Markovianity.
Adrián A. Budini
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