Quantum Optics with atomic vapours in the hyperfine Paschen-Back regime

该项目将涉及对热铷蒸气进行的各种量子光学现象的实验研究。由于我们以前的研究已经表明，这大大简化了实验光谱的分析，因此将使用大磁场来实现超精细Paschen Back机制。除了使用许多不同的激光频率来实现四波混频之外，还将使用激光进行仔细的吸收和旋光研究。该项目的长期目标是充分理解超精细帕邢-巴克机制，以表征可能从加热的原子蒸气中获得的预示性单光子，并研究在该机制中通过精密光谱测量基本物理常数（玻尔兹曼常数）的可能性。

This project will involve an experimental study of various quantum optical phenomena conducted with hot rubidium vapour. A large magnetic field will be used to achieve the hyperfine Paschen Back regime, as our previous studies have demonstrated that this greatly simplifies the analysis of the experimental spectra.Both careful absorption and optical rotation studies will be conducted with of laser, in addition to using many different laser frequencies to achieve four-wave mixing. The long-term aim of this project is to understand the hyperfine Paschen-Back regime sufficiently well to enable the characterisation of the heralded single photons that it is possible to obtain from a heated atomic vapour, and to investigate the possibility of measuring a fundamental physical constant (the Boltzmann constant) from precision spectroscopy in this regime.