Electromagnetically induced transparency at a chiral exceptional point

C Wang, X Jiang, G Zhao, M Zhang, CW Hsu, B Peng… - Nature Physics, 2020 - nature.com
Electromagnetically induced transparency, as a quantum interference effect to eliminate
optical absorption in an opaque medium, has found extensive applications in slow-light …

Digital communication with Rydberg atoms and amplitude-modulated microwave fields

DH Meyer, KC Cox, FK Fatemi, PD Kunz - Applied Physics Letters, 2018 - pubs.aip.org
Rydberg atoms, with one highly excited, nearly ionized electron, have extreme sensitivity to
electric fields, including microwave fields ranging from 100 MHz to over 1 THz. Here, we …

Rydberg microwave-frequency-comb spectrometer

LH Zhang, ZK Liu, B Liu, ZY Zhang, GC Guo… - Physical Review …, 2022 - APS
The developing frequency-comb spectral technologies have potential applications and
prospects in the wide fields of cosmology, meteorology, and microwave measurement. Here …

Weak-value amplification of the nonlinear effect of a single photon

M Hallaji, A Feizpour, G Dmochowski, J Sinclair… - Nature Physics, 2017 - nature.com
In quantum mechanics, the concept of weak measurements allows for the description of a
quantum system both in terms of the initial preparation and the final state (post-selection) …

Observation of the nonlinear phase shift due to single post-selected photons

A Feizpour, M Hallaji, G Dmochowski, AM Steinberg - Nature Physics, 2015 - nature.com
Over the past years, much effort has gone towards generating interactions between two
optical beams so strong that they could be observed at the level of individual photons …

Perfect higher-order squeezing via strong nonlinearity in microwave-modified electromagnetically induced transparency

J Xu, F Wang - Physical Review A, 2021 - APS
We show that it is possible to obtain perfect higher-order squeezing via strong nonlinearities
in the microwave-modified electromagnetically induced transparency (EIT). In a typical Λ …

Storage efficiency of probe pulses in an electromagnetically-induced-transparency medium

R Zhang, XB Wang - Physical Review A, 2016 - APS
We have studied light storage in an electromagnetically-induced-transparency medium. The
total storage efficiency for the probe pulse has been presented, with and without adiabatic …

Multichannel nonreciprocal amplifications using cesium vapor

YD Hu, GQ Zhang - Physical Review A, 2023 - APS
Multichannel synchronous amplifications are an inevitable key problem in quantum
communication process, which can broaden the bandwidth of transmitted signals and …

Design and analysis of EMIT filter and diplexer

XQ Lin, JY Jin, JW Yu, Y Jiang, Y Fan… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
In this paper, a novel design of an E-plane waveguide filter, called electromagnetically
induced transparency (EMIT) filter, is proposed. This EMIT filter is implemented by a …

Decoherence-induced cross-Kerr nonlinearity for quantum entanglement

Z Chen, F Wang - Laser Physics Letters, 2024 - iopscience.iop.org
In this paper, we show that the cross-Kerr nonlinearity is induced by the ground-state
decoherence in a Λ system even under the exact one-and two-photon resonance conditions …