Distributing Memory Effects in an Open Two-Qubit System
arXiv:2002.12684 · doi:10.1103/PhysRevA.102.022225
Abstract
We introduce a method to distribute memory effects among different subspaces of an open two-qubit system's state space. Within the linear optical framework, our system of interest is the polarization of two photons, while the environment consists of their frequency degree of freedom. By exploiting initially correlated frequency distributions and initial frequency-dependent phase factors, we are able to control all the four decoherence functions for polarization -- corresponding to different open system subspace divisions -- almost independently of each other. Hence, our results demonstrate how, in a multipartite dephasing system, Markovian and non-Markovian dynamics can be arbitrarily divided between the subsystems, and giving rise to a novel concept of memory partitions. We also discuss further implications the results have, e.g., on the dynamics of purity and entropy within the two-qubit system.
9 pages, 4 figures
References in corpus (16)
- Non-Markovian dynamics in open quantum systems
- Quantum Non-Markovianity: Characterization, Quantification and Detection
- Experimental control of the transition from Markovian to non-Markovian dynamics of open quantum systems
- Efficient non-Markovian quantum dynamics using time-evolving matrix product operators
- Concepts of quantum non-Markovianity: a hierarchy
- Theory of Pseudomodes in Quantum Optical Processes
- Non-Markovianity through accessible information
- Universal Markovian reduction of Brownian particle dynamics
- Linear Optics Simulation of Non-Markovian Quantum Dynamics
- Experimental observation of weak non-Markovianity
- Non-Markovian quantum dynamics: What is it good for?
- Non-Markovian quantum dynamics: What does it mean?
- All-optical quantum simulator of qubit noisy channels
- Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities
- Efficient superdense coding in the presence of non-Markovian noise
- Non-Markovianity-assisted high-fidelity Deutsch-Jozsa algorithm in diamond
Cited by in corpus (4)
- Interferometric Approach to Open Quantum Systems and Non-Markovian Dynamics
- Experimental Snapshot Verification of non-Markovianity with Unknown System-Probe Coupling
- Experimental Quantum Probing Measurements With No Knowledge on the System-Probe Interaction
- Engineering of Hong-Ou-Mandel interference with effective noise