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Accurate characterization using static light scattering (SLS) and dynamic light scattering (DLS) methods mandates the measurement and analysis of singly-scattered light. In turbid samples, the suppression of multiple scattering is therefore…

软凝聚态物质 · 物理学 2012-09-18 Ian Block , Frank Scheffold

Coherent and reversible mapping of quantum information between light and matter is an important experimental challenge in quantum information science. In particular, it is a decisive milestone for the implementation of quantum networks and…

We propose an entanglement generation scheme that requires neither the coherent evolution of a quantum system nor the detection of single photons. Instead, the desired state is heralded by a {\em macroscopic} quantum jump. Macroscopic…

量子物理 · 物理学 2009-11-11 Jeremy Metz , Michael Trupke , Almut Beige

We propose a strategy for enabling photodissociation of a normally photostable molecule through coupling to a nanoparticle plasmon. The large possible coupling on the single-molecule level combined with the highly lossy nature of plasmonic…

量子物理 · 物理学 2021-01-12 José Torres-Sánchez , Johannes Feist

Molecular triplet states can produce significant phosphorescence and act as a relay state for luminescence, such as in up-conversion processes. While this property makes triplet emitters interesting for organic light-emitting diodes…

介观与纳米尺度物理 · 物理学 2026-05-14 Li-Qing Zheng , Fábio J. R. Costa , Abhishek Grewal , Ruonan Wang , Fengmin Wang , Wei Li , Anna Rosławska , Klaus Kuhnke , Klaus Kern

Mandel Q-parameter, which is determined from single event photon statistics, provides an alternative to differentiate single-molecule with fluorescence detection. In this work, by using the Q-parameter of the sample fluorescence compared to…

量子物理 · 物理学 2009-11-13 Shuangli Dong , Tao Huang , Yuan Liu , Jun Wang , Guofeng Zhang , Liantuan Xiao+ , Suotang Jia

Stimulated optical forces offer a simple and efficient method for providing optical forces far in excess of the saturated radiative force. The bichromatic force, using a counterpropagating pair of two-color beams, has so far been the most…

原子物理 · 物理学 2015-06-16 S. E. Galica , L. Aldridge , E. E. Eyler

Imperfect photons' indistinguishability limits the performance of photonic quantum communication and computation . Distillation protocols, inspired by entanglement purification, enhance photons' indistinguishability by leveraging quantum…

We discuss a new method for realizing number-resolving and non-demolition photo detectors by strong coupling of light to individual single photon emitters, which act as strong optical non-linearities. As a specific application we show how…

量子物理 · 物理学 2012-03-16 D. Witthaut , M. D. Lukin , A. S. Sørensen

Superradiance in an ensemble of atoms leads to the collective enhancement of radiation in a particular mode shared by the atoms in their spontaneous decay from an excited state. The quantum aspects of this phenomenon are highlighted when…

High-quality sources of single photons are of paramount importance for quantum communication, sensing and metrology. To these ends, resonantly excited two-level systems based on self-assembled quantum dots have recently generated widespread…

Ultracold molecular gases are promising as an avenue to rich many-body physics, quantum chemistry, quantum information, and precision measurements. This richness, which flows from the complex internal structure of molecules, makes the…

原子物理 · 物理学 2015-06-18 A. M. Jayich , A. C. Vutha , M. T. Hummon , J. V. Porto , W. C. Campbell

The electronic excitation of molecules triggers diverse phenomena such as luminescence and photovoltaic effects, which are the bases of various energy-converting devices. Understanding and control of the excitations at the single-molecule…

化学物理 · 物理学 2017-07-12 Hiroshi Imada , Kuniyuki Miwa , Miyabi Imai-Imada , Shota Kawahara , Kensuke Kimura , Yousoo Kim

The swing-up of quantum emitter population (SUPER) scheme allows to populate the excited state of a quantum emitter with near-unity fidelity using two red-detuned laser pulses. Its off-resonant, yet fully coherent nature has attracted…

量子物理 · 物理学 2024-09-19 Luca Vannucci , Niels Gregersen

The spectroscopic properties of a single, tightly trapped atom are studied, when the electronic levels are coupled by three laser fields in an $N$-shaped configuration of levels, whereby a $\Lambda$-type level system is weakly coupled to a…

量子物理 · 物理学 2014-04-16 Caroline Champenois , Giovanna Morigi , Juergen Eschner

We have made the first observation of a charged particle beam by means of its electro-optical effect on the polarization of laser light in a LiNbO3 crystal. The modulation of the laser light during the passage of a pulsed electron beam was…

We propose novel coherent-state phase concentration by probabilistic measurement-induced ampli- fication. The amplification scheme uses novel architecture, thermal noise addition (instead of single photon addition) followed by feasible…

量子物理 · 物理学 2015-05-13 Petr Marek , Radim Filip

A new engineering technique using continuous quantum measurement in conjunction with feed-forward is proposed to improve indistinguishability of a single-photon source. The technique involves continuous monitoring of the state of the…

量子物理 · 物理学 2010-02-20 Shesha Raghunathan , Todd Brun

Single atoms trapped in optical cavities exhibit immense potential as key nodes in future quantum information processing. They have already demonstrated significant advancement in various quantum technologies, particularly regarding the…

The photon blockade effect is commonly exploited in the development of single-photon sources. While the photon blockade effect could be used to prepare high-fidelity single-photon states in idealized regimes, practical implementations in…

量子物理 · 物理学 2022-12-02 Yuxun Ling , Sofia Qvarfort , Florian Mintert