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{{Short description|Quantum key distribution protocol using non-orthogonal bases}}
{{Short description|Maximally entangled two-qubit quantum state}}


{{ScholarlyWiki page top
{{ScholarlyWiki page top
|backlink={{Quantum book backlink|Quantum information and computing}}
|backlink={{Quantum book backlink|Quantum information and computing}}
{{Quantum article nav|previous=Physics:Quantum Gates and circuits|previous label=Gates and circuits|next=Physics:Quantum No-cloning theorem|next label=No-cloning theorem}}
{{Quantum article nav|previous=Physics:Quantum Entanglement|previous label=Entanglement|next=Physics:Quantum Gates and circuits|next label=Gates and circuits}}
|image=[[File:Quantum_BB84_educational_yellow.png|430px|BB84 quantum key distribution: basis choices, photon transmission, and eavesdropping checks.]]
|image=[[File:Quantum_Bell_state_educational_yellow.png|430px|Bell states as correlated two-qubit entangled states used in quantum information.]]
|text='''Quantum BB84''' is a planned ScholarlyWiki page in the Quantum Collection about the BB84 quantum key distribution protocol.
|text='''Quantum Bell state''' is a planned ScholarlyWiki page in the Quantum Collection about Bell states and two-qubit entanglement.
}}
}}


== Overview ==
== Overview ==
Placeholder: explain how Alice and Bob use non-orthogonal polarization or spin bases to establish a shared secret key and detect eavesdropping.
Placeholder: introduce Bell states as maximally entangled two-qubit states and explain why they are central in quantum information.


== Key ideas ==
== Key ideas ==
Placeholder: cover basis choice, quantum measurement disturbance, sifted keys, error checking, privacy amplification.
Placeholder: cover entanglement, two-qubit correlations, Bell basis, quantum teleportation, superdense coding.


== Protocol idea ==
== Bell basis ==
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.


== Quantum states and bases ==
== Correlations ==
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.


== Eavesdropping and error rates ==
== Preparation in circuits ==
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.


== Security role in quantum information ==
== Uses in protocols ==
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.
Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.


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{{Author|Harold Foppele}}
{{Author|Harold Foppele}}


{{Sourceattribution|Physics:Quantum BB84|1}}
{{Sourceattribution|Physics:Quantum Bell state|1}}

Revision as of 22:14, 21 May 2026




← Previous : Entanglement
Next : Gates and circuits →

Bell states as correlated two-qubit entangled states used in quantum information.

Quantum Bell state is a planned ScholarlyWiki page in the Quantum Collection about Bell states and two-qubit entanglement.


Overview

Placeholder: introduce Bell states as maximally entangled two-qubit states and explain why they are central in quantum information.

Key ideas

Placeholder: cover entanglement, two-qubit correlations, Bell basis, quantum teleportation, superdense coding.

Bell basis

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

Correlations

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

Preparation in circuits

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

Uses in protocols

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

See also

Table of contents (212 articles)

Index

Full contents

References


Author: Harold Foppele


Source attribution: Physics:Quantum Bell state