Results 71 to 80 of about 1,675 (175)
Quantum Non-Markovian Piecewise Dynamics from Collision Models [PDF]
Open Systems & Information Dynamics, 2017 Recently, a large class of quantum non-Markovian piecewise dynamics for an open quantum system obeying closed evolution equations has been introduced [1]. These dynamics have been defined in terms of a waiting-time distribution between quantum jumps, along with quantum maps describing the effect of jumps and the system evolution between them. Here, we
Salvatore Lorenzo +3 more
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Physical Review Research, 2020 The Markovian approximation is widely applied in the field of quantum optics due to the weak frequency dependence of the vacuum field amplitude, and in consequence non-Markovian effects are typically regarded to play a minor role in the optical electron ...
Alexander Carmele +3 more
doaj +1 more source
Stochastic Dynamics From Maximum Entropy in Action Space
Fortschritte der Physik, Volume 74, Issue 5, May 2026.ABSTRACT We develop an information‐theoretic formulation of stochastic dynamics in which the fundamental stochastic variable is the total action connecting spacetime points, rather than individual paths. By maximizing Shannon entropy over a joint distribution of actions and endpoints, subject to normalization and a constraint on the mean action, we ...
Fabricio Souza Luiz +3 more
wiley +1 more source
Dynamical decoupling efficiency versus quantum non-Markovianity
New Journal of Physics, 2015 We investigate the relationship between non-Markovianity and the effectiveness of a dynamical decoupling protocol for qubits undergoing pure dephasing. We consider an exact model in which dephasing arises due to a bosonic environment with a spectral density of the Ohmic class. This is parametrised by an Ohmicity parameter by changing which we can model
Addis Carole +4 more
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Oscillatory Dynamics and Non-Markovian Memory in Dissipative Quantum Systems [PDF]
Physical Review Letters, 2013 5 pages, 3 ...
Kennes, D. M. +4 more
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Do We Really Know Why Carbon Nanotubes Grow?
Small, Volume 22, Issue 30, 27 May 2026.The CNT growth mechanism is still debated. We propose a heterogeneous (2D) classical nucleation framework comparing pathways for graphenic patches, caps, and full CNTs. Despite its simplicity, it rationalizes key trends, including the correlation between catalyst particle size and CNT diameter.
Nicola Verziaggi +6 more
wiley +1 more source
Advanced Optical Materials, Volume 14, Issue 13, 3 April 2026.Combining high‐order cluster‐correlation expansion with experiment, it is revealed that P1‐driven NV decoherence under dynamical decoupling deviates from semi‐classical scaling laws. The coherence‐time exponent depends on pulse number and bath conditions, demonstrating the necessity of a full quantum bath description.
Huijin Park +8 more
wiley +1 more source
Advanced Physics Research, Volume 5, Issue 4, April 2026.ABSTRACT We investigated the entanglement dynamics in a hybrid system subjected to a dynamical modulation amplification coupled to Random Telegraph Noise (RTN), which exhibits two distinct regimes: Markovian and non‐Markovian. Our analysis reveals that this dynamical amplification not only enables the emergence of entanglement for specific entanglement
Polislin Fabrice Wonang +5 more
wiley +1 more source
Nanophotonics, Volume 15, Issue 8, 24 April 2026.By incorporating an ab‐initio or first‐principles description of molecular emitters into a recent quantum optics approach that allows to accurately describe the electromagnetic field in nanophotonic environments, employing just a few quantised modes, we study the dynamics of realistic light–matter system with finite computational resources.
Ruth H. Tichauer +3 more
wiley +1 more source
Non-Markovian dynamics and entanglement in quantum Brownian motion [PDF]
Journal of Mathematical Chemistry, 2008 17 pages, 3 ...
openaire +2 more sources