Rydberg molecule
E679853
A Rydberg molecule is an exotic, weakly bound molecule formed when a highly excited Rydberg atom interacts with one or more nearby ground-state atoms, leading to extremely large bond lengths and unusual quantum properties.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rydberg molecule canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7664575 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rydberg molecule Context triple: [Rydberg atom, relatedTo, Rydberg molecule]
-
A.
Rydberg atoms
Rydberg atoms are highly excited atoms with one or more electrons in very high principal quantum number states, exhibiting exaggerated atomic properties and strong sensitivity to external fields.
-
B.
Herzberg trilogy on molecular spectra
The Herzberg trilogy on molecular spectra is a foundational multi-volume work that systematically presents the theory and experimental data of molecular spectroscopy, authored by Nobel laureate Gerhard Herzberg.
-
C.
Rydberg–Ritz combination principle
The Rydberg–Ritz combination principle is a rule in atomic spectroscopy stating that the frequencies (or wavenumbers) of spectral lines can be expressed as differences between terms in a series, enabling systematic prediction and classification of atomic spectra.
-
D.
Rydberg constant
The Rydberg constant is a fundamental physical constant that characterizes the limiting value of the highest wavenumber (or lowest wavelength) of any photon that can be emitted from the hydrogen atom, playing a key role in atomic spectroscopy and quantum theory.
-
E.
Rydberg energy
Rydberg energy is a fundamental physical constant representing the binding energy of an electron in the ground state of a hydrogen atom, widely used as a reference scale in atomic physics and spectroscopy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Rydberg molecule Target entity description: A Rydberg molecule is an exotic, weakly bound molecule formed when a highly excited Rydberg atom interacts with one or more nearby ground-state atoms, leading to extremely large bond lengths and unusual quantum properties.
-
A.
Rydberg atoms
Rydberg atoms are highly excited atoms with one or more electrons in very high principal quantum number states, exhibiting exaggerated atomic properties and strong sensitivity to external fields.
-
B.
Herzberg trilogy on molecular spectra
The Herzberg trilogy on molecular spectra is a foundational multi-volume work that systematically presents the theory and experimental data of molecular spectroscopy, authored by Nobel laureate Gerhard Herzberg.
-
C.
Rydberg–Ritz combination principle
The Rydberg–Ritz combination principle is a rule in atomic spectroscopy stating that the frequencies (or wavenumbers) of spectral lines can be expressed as differences between terms in a series, enabling systematic prediction and classification of atomic spectra.
-
D.
Rydberg constant
The Rydberg constant is a fundamental physical constant that characterizes the limiting value of the highest wavenumber (or lowest wavelength) of any photon that can be emitted from the hydrogen atom, playing a key role in atomic spectroscopy and quantum theory.
-
E.
Rydberg energy
Rydberg energy is a fundamental physical constant representing the binding energy of an electron in the ground state of a hydrogen atom, widely used as a reference scale in atomic physics and spectroscopy.
- F. None of above. chosen
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
exotic molecule
ⓘ
few-body quantum system ⓘ ultracold quantum system ⓘ weakly bound molecule ⓘ |
| bindingMechanism |
Fermi pseudopotential interaction
NERFINISHED
ⓘ
low-energy scattering of Rydberg electron from ground-state atom ⓘ |
| bindingMechanism | electron-neutral scattering ⓘ |
| bondOrigin |
electron-neutral scattering resonance
ⓘ
shape resonance in electron-atom scattering ⓘ |
| electronicState | highly excited Rydberg state ⓘ |
| existsIn |
Bose–Einstein condensates
NERFINISHED
ⓘ
optical traps ⓘ ultracold atomic gases ⓘ |
| firstExperimentalObservation | 2009 ⓘ |
| firstObservedBy |
Chris H. Greene
NERFINISHED
ⓘ
Johannes Deiglmayr NERFINISHED ⓘ Tilman Pfau NERFINISHED ⓘ |
| firstObservedIn | rubidium gas ⓘ |
| hasComponent |
Rydberg atom
NERFINISHED
ⓘ
ground-state atom ⓘ highly excited electron ⓘ |
| hasProperty |
extremely large bond length
ⓘ
giant dipole moment ⓘ high principal quantum number ⓘ long-range interaction ⓘ non-classical bond ⓘ sensitivity to external fields ⓘ ultracold temperature regime ⓘ unusual vibrational structure ⓘ very weak binding energy ⓘ |
| hasType |
butterfly Rydberg molecule
NERFINISHED
ⓘ
p-type Rydberg molecule ⓘ polyatomic Rydberg molecule ⓘ s-type Rydberg molecule ⓘ trilobite Rydberg molecule ⓘ ultralong-range Rydberg molecule ⓘ |
| lifetimeLimitedBy |
blackbody radiation
ⓘ
collisional decay ⓘ radiative decay of Rydberg state ⓘ |
| potentialApplication |
precision measurements of scattering lengths
ⓘ
probing ultracold gases ⓘ quantum simulation ⓘ |
| requiresCondition |
laser excitation to Rydberg state
ⓘ
ultracold atomic temperatures ⓘ ultrahigh vacuum ⓘ |
| studiedIn |
atomic physics
ⓘ
molecular physics ⓘ quantum information science ⓘ quantum optics ⓘ |
| theoreticalModel |
Fermi contact interaction model
NERFINISHED
ⓘ
quantum defect theory ⓘ |
| theorizedBy | Enrico Fermi NERFINISHED ⓘ |
| typicalBindingEnergy |
MHz scale
ⓘ
sub-MHz scale ⓘ |
| typicalBondLength |
hundreds of nanometers
ⓘ
tens of nanometers ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Rydberg molecule Description of subject: A Rydberg molecule is an exotic, weakly bound molecule formed when a highly excited Rydberg atom interacts with one or more nearby ground-state atoms, leading to extremely large bond lengths and unusual quantum properties.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Rydberg atom