Results 141 to 150 of about 9,545 (228)
PhotonicsWe investigate the utilization of advanced single photons produced by quantum dots (QDs) in a microcavity for quantum metrology. Through the integration of lateral excitation and the Purcell effect in an Fabry–Perot microcavity, we realized single-photon
Zhixuan Rao +3 more
doaj +1 more source
Advanced Physics Research, Volume 5, Issue 6, June 2026.We report an experimental demonstration of room‐temperature Hong–Ou–Mandel interference at a radio‐wave frequency of 120 MHz using emulated single‐photon states conditionally built from classical phase‐averaged coherent states. Our technique and results open the door to realizing quantum protocols in frequency ranges where standard quantum technologies
A. Sheleg +9 more
wiley +1 more source
Quantum Information Measures of a Dirichlet Waveguide with Neumann Window(s)
Advanced Quantum Technologies, Volume 9, Issue 6, June 2026.ABSTRACT Engineering boundary conditions in low‐dimensional structures provides a simple yet powerful way of shaping how quantum information is stored and transported. We investigate a flat 2D Dirichlet waveguide containing one or two finite Neumann windows and compute the bound states in both position and momentum space as functions of the window ...
Firoz Chogle, Berihu Teklu
wiley +1 more source
Preserving Quantum Coherence in Thermal Noisy Systems Via Qubit Frequency Modulation
Advanced Quantum Technologies, Volume 9, Issue 6, June 2026.Frequency modulation is shown to preserve quantum coherence in a thermal phase‐covariant environment only under specific noise conditions. It protects a qubit against thermal dissipation from a Lorentzian reservoir, but fails against thermal pure dephasing from an Ohmic reservoir.
Mahshid Khazaei Shadfar +5 more
wiley +1 more source
Scattering as a Quantum Metrology Problem: A Quantum Walk Approach. [PDF]
Entropy (Basel), 2020 Zatelli F, Benedetti C, Paris MGA.
europepmc +1 more source
AIM QuTE: Automated Impedance Metrology extending the Quantum Toolbox for Electricity
, 2013 The “Automated impedance metrology extending the quantum toolbox for electricity” project (AIM QuTE) will extend Josephson impedance bridges capabilities to the whole complex plane with the best level of uncertainties (0.05 ppm).
Ziołek A +13 more
core
Quantum Error-Corrected Non-Markovian Metrology
PRX QuantumQuantum metrology aims to maximize measurement precision on quantum systems, with a wide range of applications in quantum sensing. Achieving the Heisenberg limit (HL)—the fundamental precision bound set by quantum mechanics—is often hindered by noise ...
Zachary Mann +3 more
doaj +1 more source
Shortcut-to-Adiabaticity-Like Techniques for Parameter Estimation in Quantum Metrology. [PDF]
Entropy (Basel), 2020 Cabedo-Olaya M +2 more
europepmc +1 more source
Topics in estimation of quantum channels
, 2010 A quantum channel is a mapping which sends density matrices to density matrices. The estimation of quantum channels is of great importance to the field of quantum information.
O'Loan, Caleb J.
core
Relative Entropy of Coherence Quantifies Performance in Bayesian Metrology
The ability of quantum states to be in superposition is one of the key features that sets them apart from the classical world. This “coherence” is rigorously quantified by resource theories, which aim to understand how such properties may be exploited in
Assad, Syed +11 more
core +1 more source