Transferring Quantum Populations Using STIRAP
By Laura Guo, Danielle Riekse, Ishara Shanmugasundaram
One of the biggest hurdles in modern-day quantum physics is figuring out how to transfer quantum populations from one state to another. Stimulated Raman Adiabatic Passage (STIRAP) aims to solve this problem by creating an efficient, active method of transfer. STIRAP relies on three-state pulsed stimulated Raman scattering (SRS). Raman scattering induces a change in the vibrational state of the atom due to absorption of energy, and this scattering can be stimulated using a pump and stroke photon. The pump photon excites the atom to a virtual state while the stoke photon relaxes it to a different state than the original. The adiabatic nature of STIRAP passages allows it to not get affected by external perturbation. Our goal is to create a STIRAP model with 75% efficiency of transfer and ideally implement it in superconducting quantum circuits.