Optically pumped quantum M _x – M _R magnet

Abstract

A dip of the transverse component of the magnetic moment as a function of resonance frequency-detuning will emerge when the intensity of oscillating magnetic field exceeds a specific value, which is demonstrated theoretically and experimentally. The linewidth of magnetic-resonance signal can be much smaller than when the Mx–MR magnetometer operates on condition that the intensity of oscillating magnetic field is smaller than this specific value, and the Mx–MR magnetometer can possess a much higher signal-to-noise ratio. The experimental result shows that the sensitivity of Mx–MR magnetometer can be improved by an order of magnitude under this condition.

Floquet Majorana fermions in superconducting quantum dots

“…In the case where µ 2 or µ 3 are zero the MFs are spatially separated [25]. Interestingly, the manipulation of the onsite-energies allows to change the localization of the MFs, which would be relevant for their detection in transport [10].…”

“…The existence of these exotic dynamical quasiparticles can be detected by connecting two metallic leads and measuring transport [10,25,44,45]. The signatures of FMFs will be present in the differential conductance measurement by the fulfillment of the Floquet sum rule [46].…”

Sox17 Promotes Oligodendrocyte Regeneration by Dual Modulation of Hedgehog and Wnt Signaling

“…Gli repressor forms, particularly Gli3R, are known to inhibit canonical Wnt signaling by direct interaction with beta-catenin (Ulloa et al, 2007). Shh antagonism of Wnt (Ding and Wang, 2017) may additionally be contributed by SFRP (He et al, 2006;Katoh and Katoh, 2006), a regulated target of Sox17 (Chew et al, 2011). SFRP1 regulation of Wnt3a (Galli et al, 2006) or GSK3beta activity (Peng et al, 2019) in turn alters beta-catenin localization and function (Peng et al, 2019).…”

Influence of pump intensity on atomic spin relaxation in a vapor cell*

“…[7,8] The atomic spin relaxation time T 2 in the vapor cell is a very important parameter which directly determines the sensitivity of an atomic magnetometer. [9][10][11] The spin relaxation in the vapor cell is affected by many factors, such as diffusion of atoms, [12,13] collision between atoms, [14][15][16] optical pumping, etc. The relaxation caused by diffusion and collision can be suppressed by some advanced techniques, such as atom-relaxation coating of the vapor cell, [17] optimizing the filling of buffer gas, [18] controlling the temperature of the vapor cell, [19] reducing the magnetic field gradient, [20] etc.…”