3 papers
quant-ph2026
Single Photon Cross-Phase Shifts Can Be Enhanced by Localization in both Frequency and Time
Xinyu Jiao, Vida-Michelle Nixon, Kyle Thompson +1
Single-photon optical nonlinearities face a fundamental trade-off: maximum nonlinearity requires both spectral resonance (narrow bandwidth) and high peak intensity (short duration)…
quant-ph2024
Experimental evidence that a photon can spend a negative amount of time in an atom cloud
Daniela Angulo, Kyle Thompson, Vida-Michelle Nixon +3
When a pulse of light traverses a material, it incurs a time delay referred to as the group delay. Should the group delay experienced by photons be attributed to the time they spen…
quant-ph2023
How much time does a photon spend as an atomic excitation before being transmitted?
Kyle Thompson, Kehui Li, Daniela Angulo +5
When a single photon traverses a cloud of 2-level atoms, the average time it spends as an atomic excitation -- as measured by weakly probing the atoms -- can be shown to be the spo…