Does entanglement enhance single-molecule pulsed biphoton spectroscopy?

A Khan, F Albarelli, A Datta - Quantum Science and Technology, 2024 - iopscience.iop.org
It depends. For a single molecule interacting with one mode of a biphoton probe, we show
that the spectroscopic information has three contributions, only one of which is a genuine …

Emulating quantum entangled biphoton spectroscopy using classical light pulses

L Ko, RL Cook, KB Whaley - The Journal of Physical Chemistry …, 2023 - ACS Publications
We show that for a class of quantum light spectroscopy (QLS) experiments using n= 0, 1, 2,···
classical light pulses and an entangled photon pair (a biphoton state) where one photon …

Ultrafast electro-optic time-frequency fractional Fourier imaging at the single-photon level

M Lipka, M Parniak - Optics Express, 2024 - opg.optica.org
The Fractional Fourier Transform (FRT) corresponds to an arbitrary-angle rotation in the
phase space, eg, the time-frequency (TF) space, and generalizes the fundamentally …

Role of chirping in pulsed single-photon spectroscopy

E Darsheshdar, A Khan, F Albarelli, A Datta - Physical Review A, 2024 - APS
We investigate the precision of estimating the interaction strength between a two-level
system (TLS) and a single-photon pulse when the latter is subject to chirping. We consider …

Probing exciton dynamics with spectral selectivity through the use of quantum entangled photons

Y Fujihashi, K Miwa, M Higashi… - The Journal of Chemical …, 2023 - pubs.aip.org
Quantum light is increasingly recognized as a promising resource for developing optical
measurement techniques. Particular attention has been paid to enhancing the precision of …

Quantum limits of position and polarizability estimation in the optical near field

L Kienesberger, T Juffmann, S Nimmrichter - Physical Review Research, 2024 - APS
Optical near fields are at the heart of various applications in sensing and imaging. We
investigate dipole scattering as a parameter estimation problem and show that optical near …

Pathway selectivity in time-resolved spectroscopy using two-photon coincidence counting with quantum entangled photons

Y Fujihashi, A Ishizaki, R Shimizu - The Journal of Chemical Physics, 2024 - pubs.aip.org
Ultrafast optical spectroscopy is a powerful technique for studying the dynamic processes of
molecular systems in condensed phases. However, in molecular systems containing many …

[HTML][HTML] Two-photon absorption cross sections of pulsed entangled beams

F Schlawin - The Journal of Chemical Physics, 2024 - pubs.aip.org
Entangled two-photon absorption (ETPA) could form the basis of nonlinear quantum
spectroscopy at very low photon fluxes, since, at sufficiently low photon fluxes, ETPA scales …

Qubit readout and quantum sensing with pulses of quantum radiation

M Khanahmadi, K Mølmer - Physical Review A, 2023 - APS
Different hypotheses about a quantum system such as the logical state of a qubit or the
value of physical interaction parameters can be investigated by the interaction with a probe …

NSF-UKRI Bilateral Workshop: Quantum Information Science in Chemistry

GD Scholes, A Olaya-Castro, S Mukamel… - arXiv preprint arXiv …, 2024 - arxiv.org
This document summarizes the context and main outcomes of the discussions that took
place during the NSF-UKRI bilateral workshop on Quantum Information Science in …