Decay of a quasi-stable quantum system and quantum backflow
arXiv:1910.05179 · doi:10.1103/PhysRevA.100.052101
Abstract
The decay of quasi-stable quantum system involves primarily an outgoing probability current density. However, during the transition from exponential to inverse-power-law decay there are time intervals during which this current, although small, is inward. In this paper this inward flow is associated with quantum backflow. Furthermore substantial backflow exists for time-evolving free wave packets which are initially confined in space.
arXiv comment12 pages, 15 figures
References in corpus (11)
- Accurate numerical solutions of the time-dependent Schrödinger equation
- Experimental investigation of quantum decay at short, intermediate and long times via integrated photonics
- A new approach to quantum backflow
- Analytic Examples, Measurement Models and Classical Limit of Quantum Backflow
- An Introduction to the Quantum Backflow Effect
- Quantum backflow and scattering
- Equivalence between quantum backflow and classically forbidden probability flow in a diffraction-in-time problem
- Bohmian description of a decaying quantum system
- Quantum decay law: Critical times and the Equivalence of approaches
- The various power decays of the survival probability at long times for free quantum particle
- On the effectiveness of Gamow's method for calculating decay rates
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- The evolution of the FRW universe with decaying metastable dark energy --- a dynamical system analysis
- Formal Aspects of Quantum Decay
- On numerical solutions of the time-dependent Schrödinger equation
- Observation of single-photon azimuthal backflow with weak measurement
- Quantum Back Flow Across a Black Hole Horizon in a Toy Model Approach
- Quantum backflow for two identical particles
- Quantum backflow current in a ring: Optimal bounds and fractality
- Preparing Quantum Backflow States by Large Momentum Transfer
- Time Evolution of a Decaying Quantum State: Evaluation and Onset of Non-Exponential Decay
- Cosmological "constant" in a universe born in the metastable false vacuum state