在室温下单光子非线性
Anton V Zasedatelev1,2, Anton V Baranikov3,4, Denis Sannikov3,4
1Center for Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, Moscow, Russia. a.zasedatelev@skoltech.ru.
Nature
|September 23, 2021
概括
研究人员在室温下在有机激子-极子凝聚物中实现了单光子非线性运行. 这一突破为量子技术提供了超快的全光学控制,
科学领域:
- 量子光学
- 有机电子产品
- 纳米技术
背景情况:
- 纳米技术和单分子光谱学的进步使新的量子光学技术成为可能.
- 有机材料提供了在环境条件下运行的具有成本效益的设备的潜力.
研究的目的:
- 在微腔中使用 π 结合梯形聚合物制造具有量子流体特性的激子-极子凝聚物.
- 在单光子水平实现缩波函数的超快,全光学控制.
主要方法:
- 将一个 π 结合的梯形类型的聚合物强烈合到微腔中以形成混合的轻物质状态 (刺激极子).
- 使用高能分子振动的稳定激子进行非线性操作.
- 在单光子水平上触发玻色子刺激.
主要成果:
- 证明了具有量子流体特性的激子-极子凝聚物.
- 通过单光子级别的玻色刺激,在激子-极子中实现极端非线性.
- 在环境条件下启用单光子非线性操作.
结论:
- 这项工作使得宏观凝聚物波函数的超快全光控制成为可能.
- 开辟了实用量子光学技术的新视野,如在量子极限上进行次比秒切换,放大和全光学逻辑.
相关概念视频
Atomic Spectroscopy: Effects of Temperature
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Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
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Atomic Nuclei: Nuclear Spin State Population Distribution
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Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
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