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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Multidimensional pump-probe spectroscopy with entangled twin-photon states.

Oleksiy Roslyak¹, Shaul Mukamel

¹Department of Chemistry, University of California, Irvine, California 92697-2025, USA.

Physical Review. A, Atomic, Molecular, and Optical Physics

|July 8, 2010

Summary

Entangled photons enable novel coherent multidimensional nonlinear spectroscopy by scanning photon wave function parameters. This technique offers high temporal resolution for studying matter correlations and dynamics.

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Area of Science:

Quantum Optics
Nonlinear Spectroscopy
Spectroscopic Techniques

Background:

Classical multidimensional nonlinear spectroscopy commonly uses frequencies and time delays.
Scanning photon wave function parameters offers an alternative approach to probing matter.

Purpose of the Study:

To demonstrate the use of entangled photons in coherent multidimensional nonlinear spectroscopy.
To explore novel methods for obtaining information on matter using quantum properties of light.

Main Methods:

Utilizing entangled photons instead of classical pulses for spectroscopy.
Employing a diagrammatic close time path loop formalism for signal interpretation.
Scanning entanglement time and delay of twin photons as spectroscopic parameters.

Main Results:

Entangled photons provide information on matter by scanning entanglement time and twin photon delay.
Two-photon resonant contributions scale linearly with incident intensity, revealing off-resonant transition frequencies.
Two-dimensional spectrograms offer high temporal resolution for correlations and dynamics.

Conclusions:

Entangled photon spectroscopy provides a new pathway for investigating quantum correlations and dynamics.
This method offers an alternative to classical pulse shaping techniques in multidimensional spectroscopy.