Experimental investigation of joint measurement uncertainty relations for three incompatible observables at a single-spin level
| Autor: | Fengxue Zhou, J. W. Zhang, Liangyi Chen, K. Rehan, Meifu Feng, L.-L. Yan, T. P. Xiong, Wan-Li Yang, Jinye Li |
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| Rok vydání: | 2020 |
| Předmět: |
Rest (physics)
Quantum optics Physics business.industry Contrast (statistics) Observable 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Theoretical physics Optics 0103 physical sciences Measurement uncertainty Quantum information 0210 nano-technology business Spin (physics) Joint (geology) |
| Zdroj: | Optics Express. 28:25949 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.401337 |
| Popis: | In the light of the Busch, Lathi and Werner proposal, we explore, for the first time, the joint measurements and confirmation of uncertainty relations for three incompatible observables that reflect the original spirit proposed by Heisenberg in 1927. We first develop the error trade-off relations theoretically and then demonstrate the first experimental witness of joint measurements using a single ultracold 40Ca+ ion trapped in a harmonic potential. In addition, we report, that in contrast to the case of two observables, scarifying accuracy of any one of the three observables the rest of two can be measured with ultimate accuracy. |
| Databáze: | OpenAIRE |
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