Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Fermi Level Dynamics

Fermi Level Dynamics

The vacuum level denotes the energy threshold required for an electron to escape from a material surface. It is usually positioned above the conduction band of a semiconductor and acts as a benchmark for comparing electron energies within various materials.
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...

Preparation of 1° Amines: Hofmann and Curtius Rearrangement Mechanism

Preparation of 1° Amines: Hofmann and Curtius Rearrangement Mechanism

The Hofmann and Curtius rearrangement reactions can be applied to synthesize primary amines from carboxylic acid derivatives such as amides and acyl azides. In the Hofmann rearrangement, a primary amide undergoes deprotonation in the presence of a base, followed by halogenation to generate an N-haloamide. A second proton abstraction produces a stabilized anionic species, which rearranges to an isocyanate intermediate via an alkyl group migration from the carbonyl carbon to the neighboring...

Preparation of 1° Amines: Hofmann and Curtius Rearrangement Overview

Preparation of 1° Amines: Hofmann and Curtius Rearrangement Overview

In the presence of an aqueous base and a halogen, primary amides can lose the carbonyl (as carbon dioxide) and undergo rearrangement to form primary amines. This reaction, called the Hofmann rearrangement, can produce primary amines (aryl and alkyl) in high yields without contamination by secondary and tertiary amines.

Hybridization of Atomic Orbitals II

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization

Hybridization of Atomic Orbitals I

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...

Transition State Theory

Transition State Theory

Transition-state theory, also known as activated-complex theory, provides a molecular-level explanation of reaction rates in both gas-phase and solution-phase reactions. It extends earlier kinetic models by considering the formation of a short-lived, high-energy configuration during a reaction.The progress of a chemical reaction can be represented using a reaction profile, which plots potential energy against the reaction coordinate. As two reactant molecules approach one another, their...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Measurement of Identical Particle Entanglement and the Influence of Antisymmetrization.

Physical review letters·2020

Same author

Density Oscillations Induced by Individual Ultracold Two-Body Collisions.

Physical review letters·2019

Same author

Anomalous Breaking of Scale Invariance in a Two-Dimensional Fermi Gas.

Physical review letters·2018

Same author

Equation of State of Ultracold Fermions in the 2D BEC-BCS Crossover Region.

Physical review letters·2016

Same author

Antiferromagnetic Heisenberg Spin Chain of a Few Cold Atoms in a One-Dimensional Trap.

Physical review letters·2015

Same author

Observation of Pair Condensation in the Quasi-2D BEC-BCS Crossover.

Physical review letters·2015

Search research articles

Related Experiment Video

Updated: Jun 2, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Deterministic preparation of a tunable few-fermion system.

F Serwane¹, G Zürn, T Lompe

¹Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, 69120 Heidelberg, Germany. friedhelm.serwane@mpi-hd.mpg.de

Science (New York, N.Y.)

|April 16, 2011

Summary

Researchers created highly controlled few-body quantum systems using ultracold atoms. This breakthrough enables precise quantum simulations of fundamental matter interactions and complex few-body systems.

More Related Videos

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Related Experiment Videos

Last Updated: Jun 2, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Area of Science:

Atomic physics
Quantum mechanics
Condensed matter physics

Background:

Few-body quantum systems, such as atoms and nuclei, are fundamental to matter.
Understanding these systems is crucial for advancing physics and chemistry.
Previous research faced challenges in precisely controlling few-body quantum states.

Purpose of the Study:

To create and control a few-body quantum system with high fidelity.
To investigate the effects of tunable interparticle interactions.
To lay the groundwork for quantum simulations of strongly correlated systems.

Main Methods:

Utilized ultracold fermionic atoms in an optical dipole trap.
Prepared ground-state systems with 1 to 10 particles.
Employed Feshbach resonance to tune interparticle interactions.
Achieved high preparation fidelities of approximately 90%.

Main Results:

Demonstrated complete control over the quantum state of few-body systems.
Successfully tuned interparticle interactions to arbitrary values.
Observed interaction-induced energy shifts in repulsively interacting atoms.

Conclusions:

The developed system offers unprecedented control over few-body quantum states.
This research paves the way for advanced quantum simulations.
It is expected to significantly impact the study of strongly correlated phenomena.