Nuclear spin dynamics, noise, squeezing and entanglement in box model
arXiv:2012.03872 · doi:10.1103/PhysRevLett.126.216804
Abstract
We obtain a compact analytical solution for the nonlinear equation for the nuclear spin dynamics in the central spin box model in the limit of many nuclear spins. The total nuclear spin component along the external magnetic field is conserved and the two perpendicular components precess or oscillate depending on the electron spin polarization, with the frequency, determined by the nuclear spin polarization. As applications of our solution, we calculate the nuclear spin noise spectrum and describe the effects of nuclear spin squeezing and many body entanglement in the absence of a system excitation.
arXiv comment7+4 pages, 3+3 figures; accepted to Phys. Rev. Lett.; joint submission with arXiv:2012.03870
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