Results 71 to 80 of about 80,457 (267)
Advanced Functional Materials, EarlyView.This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy +6 more
wiley +1 more source
Zero-dimensional models for gravitational and scalar QED decoherence
New Journal of Physics, 2022 We investigate the dynamics of two quantum mechanical oscillator system–bath toy models obtained by truncating to zero spatial dimensions linearized gravity coupled to a massive scalar field and scalar quantum electrodynamics (QED).
Qidong Xu, M P Blencowe
doaj +1 more source
Scanning quantum decoherence microscopy [PDF]
Nanotechnology, 2009 The use of qubits as sensitive magnetometers has been studied theoretically and recent demonstrated experimentally. In this paper we propose a generalisation of this concept, where a scanning two-state quantum system is used to probe the subtle effects of decoherence (as well as its surrounding electromagnetic environment). Mapping both the Hamiltonian
Cole, Jared H., Hollenberg, Lloyd C. L.
openaire +3 more sources
Self‐Cooling Molecular Spin Qudits
Advanced Materials, EarlyView.A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios +12 more
wiley +1 more source
Cosmological constant from decoherence [PDF]
Classical and Quantum Gravity, 2011 We address the issue why a cosmological constant (dark energy) possesses a small positive value instead of being zero. Motivated by the cosmic landscape picture, we mimic the dark energy by a scalar field with potential wells and show that other degrees of freedom interacting with it can localize this field by decoherence in one of the wells.
Kiefer, Claus +2 more
openaire +2 more sources
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
The effect of intrinsic decoherence on the dynamics of an Ξ-type qutrit system interacting with a coherent field [PDF]
, 2023 A.‐S. F. Obada +3 more
openalex +1 more source
Decoherence-Driven Quantum Transport [PDF]
Physical Review Letters, 2005 4 pages, 3 ...
Kim, Sang Wook, Choi, Mahn-Soo
openaire +3 more sources
Zone‐Sectored Organic Crystals with Spatially Resolved Exciton Dynamics
Advanced Optical Materials, EarlyView.Novel type of rubrene microcrystals in the orthorhombic phase are grown exhibiting spatial contrast in spectra and dynamics due to differences in unit cell orientation. Distinct zones selectively host redshifted luminescence band at ≈650 nm driven by high photon absorption.
Moha Naeimi +6 more
wiley +1 more source