Experimental simulation of spin-1 states by second-order type-II parametric down-conversion
Jia-qiang Zhao, Lian-zhen Cao, Yang Yang, Huai-xin Lu
Optoelectronics Letters ›› , Vol. 13 ›› Issue (1) : 74-76.
Experimental simulation of spin-1 states by second-order type-II parametric down-conversion
In this paper, by using the second-order parametric down-conversion of the nonlinear crystal, the spin-1 state is simulated by the two-photon polarization entangled modes. Through adjusting the laser pulse power density, the efficiency of second-order parametric down-conversion is enhanced. The intensity of the spin-1 state is 0.5/s. The fidelity of the state is up to F=0.891±0.002, and the contrast is C=17.3. The results provide a new method for Stern-Gerlach measurement on the spin-1 system.
[1] |
|
[2] |
|
[3] |
|
[4] |
|
[5] |
|
[6] |
|
[7] |
|
[8] |
|
[9] |
|
[10] |
|
[11] |
|
[12] |
|
[13] |
|
[14] |
|
[15] |
|
[16] |
|
[17] |
|
[18] |
|
[19] |
|
[20] |
|
This work has been supported by the Natural Science Foundation of China (Nos.11174224, 11404246 and 11447225), the Natural Science Foundation of Shandong Province (Nos.ZR2013FM001, 2013SJGZ10, BS2015DX015 and ZR2014JL029), and the Science and Technology Development Program of Shandong Province (Nos.2011YD01049 and 2013YD01016).
/
〈 |
|
〉 |