5. Applications and algorithms
5.1 Communication using super-dense coding
Super-dense coding is a quantum communication technique that allows more information to be transmitted than there are qubits in use, by exploiting quantum entanglement. We'll see, for example, that it enables two bits of information to be transmitted using a single qubit, which is impossible with conventional communication.
What's more, quantum entanglement offers a degree of security, as any attempt to intercept the message would disrupt the quantum state of the particles, which would be detectable. In fact, we could have the following scenario:
Alice has a message for Bob. He asks her what her favorite pet is. Alice replies by sending a qubit |0> for "dog" and |1>...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!

The Ultimate Scientific and Technical Reference
This article is included in
Software technologies and System architectures
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Applications and algorithms
Bibliography
- (1) - - https://quantum.ibm.com/composer
- (2) - - https://algassert.com/quirk
- (3)...
Websites
IBM quantum learning: site for learning the basics of quantum computing and IBM Quantum services and systems for solving real-world problems.
https://learning.quantum.ibm.com/
IBM quantum composer: IBM's quantum simulator.
...Directory
Alice & Bob
D-wave: D-Wave develops and supplies quantum computing systems, software and services. It builds and supplies quantum systems, cloud services, application development tools and professional services to support the end-to-end quantum journey.
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!

The Ultimate Scientific and Technical Reference