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

Molecular Orbital Theory I

Molecular Orbital Theory I

Overview of Molecular Orbital Theory

Molecular Orbital Theory II

Molecular Orbital Theory II

Molecular Orbital Energy Diagrams

MO Theory and Covalent Bonding

MO Theory and Covalent Bonding

The molecular orbital theory describes the distribution of electrons in molecules in a manner similar to the distribution of electrons in atomic orbitals. The region of space in which a valence electron in a molecule is likely to be found is called a molecular orbital. Mathematically, the linear combination of atomic orbitals (LCAO) generates molecular orbitals. Combinations of in-phase atomic orbital wave functions result in regions with a high probability of electron density, while...

The de Broglie Wavelength

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...

UV–Vis Spectroscopy: Woodward–Fieser Rules

UV–Vis Spectroscopy: Woodward–Fieser Rules

UV–Visible absorption spectra of conjugated dienes arise from the lowest energy π&VeryThinSpace;→&VeryThinSpace;π* transitions. The light-absorbing part of the molecule is called the chromophore, and the substituents directly attached to the chromophore are called auxochromes. A strong correlation exists between the absorption maxima, λmax, and the structure of a conjugated π system. The Woodward–Fieser rules predict the value of λmax for a given structure by adding the contributions...

Spin–Spin Coupling Constant: Overview

Spin–Spin Coupling Constant: Overview

In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must have a...

You might also read

Related Articles

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

Sort by

Same author

Momentum-dependent scaling exponents of nodal self-energies measured in strange metal cuprates and modelled using semi-holography.

Nature communications·2024

Same author

Nash Equilibria in the Response Strategy of Correlated Games.

Scientific reports·2019

Same author

Observation of a Space-Time Crystal in a Superfluid Quantum Gas.

Physical review letters·2018

Same author

Interaction effects on number fluctuations in a Bose-Einstein condensate of light.

Physical review letters·2014

Same author

Quantum rotor model for a Bose-Einstein condensate of dipolar molecules.

Physical review letters·2013

Same author

Magnetization relaxation and geometric forces in a Bose ferromagnet.

Physical review letters·2013

Search research articles

Related Experiment Video

Updated: Jul 7, 2026

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

Theory for p-wave Feshbach molecules.

K B Gubbels¹, H T C Stoof

¹Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE, Utrecht, The Netherlands. k.gubbels@phys.uu.nl

Physical Review Letters

|February 1, 2008

Summary

Researchers studied p-wave Feshbach molecules in potassium-40 atoms. They found these molecules have a high probability of existing in a closed channel state, enabling observation of quantum phase transitions in superfluid Bose-Einstein condensates.

Area of Science:

Atomic, Molecular, and Optical Physics
Quantum Many-Body Physics

Background:

Feshbach resonances are crucial for controlling interactions in ultracold atomic gases.
Doubly spin-polarized potassium-40 (40K) offers a unique system for studying p-wave interactions.

Purpose of the Study:

To determine the physical properties of p-wave Feshbach molecules in 40K.
To investigate the role of the closed channel state in Feshbach resonance.
To explore signatures of quantum phase transitions in superfluid Bose-Einstein condensates.

Main Methods:

Theoretical determination of physical properties of p-wave Feshbach molecules.
Analysis of molecular state probabilities (Z-factor).
Investigation of Rabi oscillations in superfluid Bose-Einstein condensates.

More Related Videos

High Precision FRET at Single-molecule Level for Biomolecule Structure Determination

High Precision FRET at Single-molecule Level for Biomolecule Structure Determination

Published on: May 13, 2017

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F⁻

Published on: July 27, 2018

Related Experiment Videos

Last Updated: Jul 7, 2026

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

High Precision FRET at Single-molecule Level for Biomolecule Structure Determination

High Precision FRET at Single-molecule Level for Biomolecule Structure Determination

Published on: May 13, 2017

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F⁻

Published on: July 27, 2018

Main Results:

Excellent agreement between determined properties and recent experimental data for 40K.
High probability (Z) for molecules to be in the closed channel state.
Observation of Rabi oscillations between molecular and atomic components in the superfluid state.

Conclusions:

The closed channel state plays a significant role in p-wave Feshbach molecule properties.
Rabi oscillations provide a signature for quantum phase transitions in magnetic fields.
Findings advance the understanding of strongly interacting quantum systems and Bose-Einstein condensates.