Kuzmich A, Mandel L, Bigelow NP
Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA.
Phys Rev Lett. 2000 Aug 21;85(8):1594-7. doi: 10.1103/PhysRevLett.85.1594.
Continuous quantum nondemolition monitoring of a collective atomic spin with an off-resonant laser beam has been performed. Squeezed atomic spin states have thereby been produced with spin noise reduction to 70% below the standard quantum limit expected for a coherent spin state.
利用非共振激光束对集体原子自旋进行了连续量子非破坏监测。由此产生了压缩原子自旋态，其自旋噪声降低到低于相干自旋态预期的标准量子极限的70%。
