Bloch oscillations
E708820
Bloch oscillations are periodic oscillations of electrons in a crystal lattice subjected to a constant electric field, arising from the band structure and leading to oscillatory motion in momentum space.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Bloch frequency | 1 |
| Bloch oscillations canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8021415 — 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: Bloch oscillations Context triple: [Esaki–Tsu relation, relatedTo, Bloch oscillations]
-
A.
Bloch waves
Bloch waves are quantum-mechanical wavefunctions that describe particles, such as electrons, propagating through a periodic crystal lattice and form the basis for understanding electronic band structure in solids.
-
B.
Floquet systems
Floquet systems are periodically driven quantum or classical systems whose behavior is analyzed using Floquet theory, often exhibiting exotic non-equilibrium phases such as time crystals.
-
C.
Rabi oscillation
Rabi oscillation is a quantum mechanical phenomenon in which a two-level system, such as an atom or qubit, undergoes coherent periodic transitions between its states when driven by a resonant oscillatory field.
-
D.
Kapitza–Dirac effect
The Kapitza–Dirac effect is a quantum phenomenon in which a beam of particles, such as electrons or atoms, is diffracted by a standing wave of light, demonstrating the wave-particle duality of matter.
-
E.
Wave Propagation in Periodic Structures
"Wave Propagation in Periodic Structures" is a foundational scientific monograph by Léon Brillouin that systematically develops the theory of wave behavior in periodically structured media, underpinning modern solid-state physics and band theory.
- 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: Bloch oscillations Target entity description: Bloch oscillations are periodic oscillations of electrons in a crystal lattice subjected to a constant electric field, arising from the band structure and leading to oscillatory motion in momentum space.
-
A.
Bloch waves
Bloch waves are quantum-mechanical wavefunctions that describe particles, such as electrons, propagating through a periodic crystal lattice and form the basis for understanding electronic band structure in solids.
-
B.
Floquet systems
Floquet systems are periodically driven quantum or classical systems whose behavior is analyzed using Floquet theory, often exhibiting exotic non-equilibrium phases such as time crystals.
-
C.
Rabi oscillation
Rabi oscillation is a quantum mechanical phenomenon in which a two-level system, such as an atom or qubit, undergoes coherent periodic transitions between its states when driven by a resonant oscillatory field.
-
D.
Kapitza–Dirac effect
The Kapitza–Dirac effect is a quantum phenomenon in which a beam of particles, such as electrons or atoms, is diffracted by a standing wave of light, demonstrating the wave-particle duality of matter.
-
E.
Wave Propagation in Periodic Structures
"Wave Propagation in Periodic Structures" is a foundational scientific monograph by Léon Brillouin that systematically develops the theory of wave behavior in periodically structured media, underpinning modern solid-state physics and band theory.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf | quantum mechanical phenomenon ⓘ |
| characterizedBy |
Bloch frequency
ⓘ
linked to:
Bloch oscillations
coherent transport ⓘ periodic evolution of quasimomentum ⓘ |
| dependsOn |
band dispersion relation
ⓘ
electric field strength ⓘ lattice spacing ⓘ |
| describedBy |
Bloch theory
ⓘ
linked to:
Bloch waves
band theory of solids ⓘ |
| field |
condensed matter physics
ⓘ
quantum physics ⓘ solid-state physics ⓘ |
| firstObservedIn |
1990s
ⓘ
optical lattices with ultracold atoms ⓘ semiconductor superlattices ⓘ |
| frequencyGivenBy | eEa/hbar ⓘ |
| frequencySymbol | ω_B ⓘ |
| hasCause |
Brillouin zone periodicity
ⓘ
acceleration theorem ⓘ band structure of a crystal ⓘ |
| hasDomain |
momentum space
ⓘ
reciprocal space ⓘ |
| involves |
Bloch electrons
ⓘ
linked to:
Bloch waves
Brillouin zone ⓘ Wannier-Stark ladder ⓘ electrons ⓘ quasimomentum ⓘ quasiparticles ⓘ |
| modelledBy |
single-band approximation
ⓘ
tight-binding model ⓘ |
| occursIn |
crystal lattice
ⓘ
electronic band structure ⓘ periodic potential ⓘ |
| predictedBy |
Félix Bloch
ⓘ
linked to:
Felix Bloch
|
| predictedIn | 1928 ⓘ |
| relatedTo |
Landau-Zener transitions
ⓘ
linked to:
Landau–Zener formula
Wannier-Stark localization ⓘ
linked to:
Wannier-Stark ladder
Zener tunneling ⓘ dynamic localization ⓘ |
| requires |
constant electric field
ⓘ
periodic lattice potential ⓘ |
| requiresCondition |
long coherence time
ⓘ
low scattering rate ⓘ |
| resultsIn |
oscillatory motion of crystal momentum
ⓘ
periodic motion in k-space ⓘ |
| suppressedBy |
dephasing
ⓘ
impurity scattering ⓘ phonon scattering ⓘ |
| usedIn |
Bloch oscillation-based accelerometry
ⓘ
coherent transport in superlattices ⓘ precision force measurements ⓘ |
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: Bloch oscillations Description of subject: Bloch oscillations are periodic oscillations of electrons in a crystal lattice subjected to a constant electric field, arising from the band structure and leading to oscillatory motion in momentum space.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Bloch oscillations