Results 81 to 90 of about 53,538 (309)

Microfiber optomechanical torsion sensor

open access: yesFrontiers in Physics, 2023
In this paper, we propose and demonstrate experimentally an optomechanical torsion sensor using a microfiber mechanical resonator. The torsion angle could be obtained by monitoring the resonant frequency shifts of the microfiber resonator.
Qiang Zhang   +7 more
doaj   +1 more source

Non-canonical quantum optics [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2000
Completely rewritten version of quant-ph/0002003v2. There are overlaps between the papers, but sections on perturbative calculations show the same problem from different sides, therefore quant-ph/0002003v2 is not ...
openaire   +5 more sources

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model

open access: yesAdvances in High Energy Physics
We study the transverse momentum (pT) spectra of neutral pions and identified charged hadrons produced in proton–proton (pp), deuteron–gold (d–Au), and gold–gold (Au–Au) collisions at the center of mass energy sNN=200 GeV.
Jia-Yu Chen   +3 more
doaj   +1 more source

Utilizing Sequential Control Scheme to Stabilize Squeezed Vacuum States

open access: yesApplied Sciences, 2019
We report on a sequential control scheme to realize a steady, quasi-continuous output of squeezed vacuum states, which eliminates the influence of the seed beam on the squeezing strength. The scheme, originating from time-division multiplexing, separates
Long Tian   +7 more
doaj   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

open access: yesAdvanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin   +16 more
wiley   +1 more source

Ultrafast nonlinear optics in semiconductors [PDF]

open access: yes, 1993
The nonlinear optical phenomena which occur in semiconductor materials on a femtosecond to picosecond timescale have recently generated much interest, especially in the field of telecommunications where the development of all-optical switching devices ...
Walmsley, M., Walmsley, M
core  

Transient dynamics of linear quantum amplifiers

open access: yes, 2005
The transient dynamics of a quantum linear amplifier during the transition from damping to amplification regime is studied. The master equation for the quantized mode of the field is solved, and the solution is used to describe the statistics of the ...
Piilo, Jyrki   +10 more
core   +1 more source

Semi-device-independent quantum random number generator with a broadband squeezed state of light

open access: yesnpj Quantum Information
Random numbers are a basic ingredient of simulation algorithms and cryptography, and play a significant part in computer simulation and information processing.
Jialin Cheng   +7 more
doaj   +1 more source

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