TY - JOUR
T1 - High Photon Number Entangled States and Coherent State Superposition from the Extreme Ultraviolet to the Far Infrared
AU - Stammer, Philipp
AU - Rivera-Dean, Javier
AU - Lamprou, Theocharis
AU - Pisanty, Emilio
AU - Ciappina, Marcelo F.
AU - Tzallas, Paraskevas
AU - Lewenstein, Maciej
PY - 2022/3/25
Y1 - 2022/3/25
N2 - We present a theoretical demonstration on the generation of entangled coherent states and of coherent state superpositions, with photon numbers and frequencies orders of magnitude higher than those provided by the current technology. This is achieved by utilizing a quantum mechanical multimode description of the single- and two-color intense laser field driven process of high harmonic generation in atoms. It is found that all field modes involved in the high harmonic generation process are entangled, and upon performing a quantum operation, lead to the generation of high photon number optical cat states spanning from the far infrared to the extreme ultraviolet spectral region. This provides direct insights into the quantum mechanical properties of the optical field in the intense laser matter interaction. Finally, these states can be considered as a new resource for fundamental tests of quantum theory, quantum information processing, or sensing with nonclassical states of light.
AB - We present a theoretical demonstration on the generation of entangled coherent states and of coherent state superpositions, with photon numbers and frequencies orders of magnitude higher than those provided by the current technology. This is achieved by utilizing a quantum mechanical multimode description of the single- and two-color intense laser field driven process of high harmonic generation in atoms. It is found that all field modes involved in the high harmonic generation process are entangled, and upon performing a quantum operation, lead to the generation of high photon number optical cat states spanning from the far infrared to the extreme ultraviolet spectral region. This provides direct insights into the quantum mechanical properties of the optical field in the intense laser matter interaction. Finally, these states can be considered as a new resource for fundamental tests of quantum theory, quantum information processing, or sensing with nonclassical states of light.
U2 - 10.1103/physrevlett.128.123603
DO - 10.1103/physrevlett.128.123603
M3 - 文章
C2 - 35394324
SN - 0031-9007
JO - Physical Review Letters
JF - Physical Review Letters
ER -