Results 21 to 30 of about 5,878,258 (248)

Experimental limit on an exotic parity-odd spin- and velocity-dependent interaction using an optically polarized vapor

open access: yesNature Communications, 2019
Symmetry breaking is an important process in fundamental understanding of matter and dark matter. Here the authors discuss an experimental bound on an exotic parity odd spin- and velocity-dependent interaction between electron and nucleon by using a ...
Young Jin Kim   +3 more
doaj   +1 more source

Spin transport of excitons [PDF]

open access: yes, 2009
We report on observation of the spin transport of spatially indirect excitons in GaAs/AlGaAs coupled quantum wells (CQW). Exciton spin transport over substantial distances, up to several micrometers in the present work, is achieved due to orders of ...
Butov, L.V.   +10 more
core   +1 more source

Cytosine ribose flexibility in DNA : a combined NMR 13C spin relaxation and molecular dynamics simulation study [PDF]

open access: yes, 2008
Using (13)C spin relaxation NMR in combination with molecular dynamic (MD) simulations, we characterized internal motions within double-stranded DNA on the pico- to nano-second time scale.
Elke Duchardt   +7 more
core   +2 more sources

Progress and applications of quantum precision measurement based on SERF effect

open access: yesFrontiers in Physics, 2022
With the development of quantum precision measurement technology, measurement methods based on magnetic, optical and atomic interactions have started to receive widespread attention.
Yueyang Zhai   +5 more
doaj   +1 more source

Light storage for one second in room-temperature alkali vapor

open access: yesNature Communications, 2018
Storing quantum memories for a long time is important and challenging for quantum communication. Here the authors demonstrate a storage time of about 1 s using spin exchange relaxation free resonance in cesium vapor.
Or Katz, Ofer Firstenberg
doaj   +1 more source

MEMS Non-Magnetic Electric Heating Chip for Spin-Exchange-Relaxation-Free (SERF) Magnetometer

open access: yesIEEE Access, 2019
The alkali metal atoms in spin-exchange-relaxation-free (SERF) atomic magnetometers require high temperature and non-magnetic environment. Increasing the temperature of the alkali metal atoms causes higher atomic density, which can enhance the intensity ...
Liang Xiaoyang   +5 more
doaj   +1 more source

Polarization Measurement of Cs Using the Pump Laser Beam

open access: yesIEEE Photonics Journal, 2017
In the optically pumped systems, the spin polarization of the atoms is generally derived by employing additional modulations, in which way an extra perturbation will be introduced and thus affect the normal operation of the sensors.
Rujie Li, Wei Quan, Jiancheng Fang
doaj   +1 more source

Intrinsic nucleic acid dynamics modulates HIV-1 nucleocapsid protein binding to its targets. [PDF]

open access: yesPLoS ONE, 2012
HIV-1 nucleocapsid protein (NC) is involved in the rearrangement of nucleic acids occurring in key steps of reverse transcription. The protein, through its two zinc fingers, interacts preferentially with unpaired guanines in single-stranded sequences. In
Ali Bazzi   +7 more
doaj   +1 more source

Theory of the Relaxation of Trapped Spin-States in Spin Crossover Materials: Drosophila for Complex Dynamics [PDF]

open access: yes, 2023
Understanding the underlying factors that give rise to complex kinetic processes is of fundamental interest to many research areas, such as protein folding, photochemistry, and quantum materials.
Ben, Powell, M., Nadeem
core   +1 more source

Spin-exchange relaxation-free magnetometer enhanced by biased weak measurement

open access: yesResults in Physics
In quantum metrology researching, weak measurement has been widely applied in many aspects, providing weak-value amplification and noise suppressing ability.
Qian Cao   +3 more
doaj   +1 more source

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