Ultrafast pump-probe phase-randomized tomography

被引:0
作者
Glerean, Filippo [1 ,2 ,3 ]
Rigoni, Enrico Maria [1 ,2 ,4 ]
Jarc, Giacomo [1 ,2 ,4 ]
Mathengattil, Shahla Yasmin [1 ,2 ]
Montanaro, Angela [1 ,2 ,4 ]
Giusti, Francesca [1 ,2 ]
Mitrano, Matteo [3 ]
Benatti, Fabio [1 ,2 ,5 ]
Fausti, Daniele [1 ,2 ,4 ]
机构
[1] Univ Trieste, Dipartimento Fis, Trieste, Italy
[2] Sincrotrone Trieste SCpA, Basovizza, Italy
[3] Harvard Univ, Dept Phys, Cambridge, MA USA
[4] Univ Erlangen Nurnberg, Dept Phys, Erlangen, Germany
[5] Ist Nazl Fis Nucl, sez Trieste, Trieste, Italy
基金
欧盟地平线“2020”; 欧洲研究理事会;
关键词
LIGHT-INDUCED SUPERCONDUCTIVITY; STATE TOMOGRAPHY; QUANTUM; STATISTICS; FERROELECTRICITY; SCATTERING;
D O I
10.1038/s41377-025-01789-y
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Measuring fluctuations in matter's low-energy excitations is the key to unveiling the nature of the non-equilibrium response of materials. A promising outlook in this respect is offered by spectroscopic methods that address matter fluctuations by exploiting the statistical nature of light-matter interactions with weak few-photon probes. Here we report the first implementation of ultrafast phase randomized tomography, combining pump-probe experiments with quantum optical state tomography, to measure the ultrafast non-equilibrium dynamics in complex materials. Our approach utilizes a time-resolved multimode heterodyne detection scheme with phase-randomized coherent ultrashort laser pulses, overcoming the limitations of phase-stable configurations and enabling a robust reconstruction of the statistical distribution of phase-averaged optical observables. This methodology is validated by measuring the coherent phonon response in alpha-quartz. By tracking the dynamics of the shot-noise limited photon number distribution of few-photon probes with ultrafast resolution, our results set an upper limit to the non-classical features of phononic state in alpha-quartz and provide a pathway to access non-equilibrium quantum fluctuations in more complex quantum materials.
引用
收藏
页数:8
相关论文
empty
未找到相关数据