Quantum state smoothing: why the types of observed and unobserved measurements matter
New Journal of Physics, 2019 We investigate the estimation technique called quantum state smoothing introduced in (Guevara and Wiseman 2015 Phys. Rev. Lett. 115 180407), which offers a valid quantum state estimate for a partially monitored system, conditioned on the observed record ...
Areeya Chantasri +2 more
doaj +1 more source
Repeated interactions in open quantum systems
, 2013 Analyzing the dynamics of open quantum systems has a long history in mathematics and physics. Depending on the system at hand, basic physical phenomena that one would like to explain are, for example, convergence to equilibrium, the dynamics of quantum ...
Bruneau, Laurent +2 more
core +3 more sources
Quantum steering ellipsoids, extremal physical states and monogamy
New Journal of Physics, 2014 Any two-qubit state can be faithfully represented by a steering ellipsoid inside the Bloch sphere, but not every ellipsoid inside the Bloch sphere corresponds to a two-qubit state.
Antony Milne +4 more
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Attosecond Delays of High-Harmonic Emissions from Hydrogen Isotopes Measured by XUV Interferometer
Ultrafast Science, 2022 High-harmonic spectroscopy can access structural and dynamical information on molecular systems encoded in the amplitude and phase of high-harmonic generation (HHG) signals. However, measurement of the harmonic phase is a daunting task.
Mumta Hena Mustary +8 more
doaj +1 more source
Intrinsic Decoherence Dynamics in Smooth Hamiltonian Systems: Quantum-classical Correspondence
, 2003 A direct classical analog of the quantum dynamics of intrinsic decoherence in Hamiltonian systems, characterized by the time dependence of the linear entropy of the reduced density operator, is introduced.
A. Isar +27 more
core +1 more source
Feedback-induced nonlinearity and superconducting on-chip quantum optics
, 2013 Quantum coherent feedback has been proven to be an efficient way to tune the dynamics of quantum optical systems and, recently, those of solid-state quantum circuits. Here, inspired by the recent progress of quantum feedback experiments, especially those
Li CW(李春文) +6 more
core +1 more source
Evaluation of the importance of spin-orbit couplings in the nonadiabatic quantum dynamics with quantum fidelity and with its efficient "on-the-fly" ab initio semiclassical approximation [PDF]
, 2012 We propose to measure the importance of spin-orbit couplings (SOCs) in the nonadiabatic molecular quantum dynamics rigorously with quantum fidelity. To make the criterion practical, quantum fidelity is estimated efficiently with the multiple-surface ...
Child M. S. +2 more
core +2 more sources
Advanced Engineering Materials, EarlyView.An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu +8 more
wiley +1 more source
Cavity-renormalized quantum criticality in a honeycomb bilayer antiferromagnet
Communications Physics, 2023 Strong light-matter interactions as realized in an optical cavity provide a tantalizing opportunity to control the properties of condensed matter systems. Inspired by experimental advances in cavity quantum electrodynamics and the fabrication and control
Lukas Weber +4 more
doaj +1 more source
A classical appraisal of quantum definitions of non-Markovian dynamics
, 2012 We consider the issue of non-Markovianity of a quantum dynamics starting from a comparison with the classical definition of Markovian process. We point to the fact that two sufficient but not necessary signatures of non-Markovianity of a classical ...
Bassano Vacchini +10 more
core +1 more source