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Conference Paper: A second-quantized Shannon theory
Title | A second-quantized Shannon theory |
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Authors | |
Issue Date | 2020 |
Publisher | Physical Society of Hong Kong. |
Citation | 23rd Annual Conference of the Physical Society of Hong Kong (PSHK2020), Virtual Conference, Hong Kong, 24-25 July 2020 How to Cite? |
Abstract | Shannon’s theory of information was built on the assumption that the information carriers were classical systems, carrying classical messages and moving along well-defined trajectories. Its quantum counterpart, quantum Shannon theory, explores scenarios in which the messages can be quantum, but their trajectories are still classical. Quantum Shannon theory can be regarded as a first quantisation of
Shannon’s information theory, where the internal state of the information carriers is quantised, but the motional degrees of freedom are treated as classical. In this talk I will discuss a second level of quantisation, where not only the information carriers, but also the path along which information travels can be in a quantum superposition. I will present several examples of this extended scenario, discussing different ways in which second-quantised communication protocols can achieve tasks that are
impossible in conventional quantum Shannon theory. |
Description | Invited presentation - Session 2: Atomic Physics and Quantum Information |
Persistent Identifier | http://hdl.handle.net/10722/294323 |
DC Field | Value | Language |
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dc.contributor.author | Chiribella, G | - |
dc.date.accessioned | 2020-11-25T06:50:10Z | - |
dc.date.available | 2020-11-25T06:50:10Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | 23rd Annual Conference of the Physical Society of Hong Kong (PSHK2020), Virtual Conference, Hong Kong, 24-25 July 2020 | - |
dc.identifier.uri | http://hdl.handle.net/10722/294323 | - |
dc.description | Invited presentation - Session 2: Atomic Physics and Quantum Information | - |
dc.description.abstract | Shannon’s theory of information was built on the assumption that the information carriers were classical systems, carrying classical messages and moving along well-defined trajectories. Its quantum counterpart, quantum Shannon theory, explores scenarios in which the messages can be quantum, but their trajectories are still classical. Quantum Shannon theory can be regarded as a first quantisation of Shannon’s information theory, where the internal state of the information carriers is quantised, but the motional degrees of freedom are treated as classical. In this talk I will discuss a second level of quantisation, where not only the information carriers, but also the path along which information travels can be in a quantum superposition. I will present several examples of this extended scenario, discussing different ways in which second-quantised communication protocols can achieve tasks that are impossible in conventional quantum Shannon theory. | - |
dc.language | eng | - |
dc.publisher | Physical Society of Hong Kong. | - |
dc.relation.ispartof | 23rd Annual Conference of the Physical Society of Hong Kong (PSHK2020) | - |
dc.title | A second-quantized Shannon theory | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Chiribella, G: giulio@cs.hku.hk | - |
dc.identifier.authority | Chiribella, G=rp02035 | - |
dc.identifier.hkuros | 312280 | - |
dc.publisher.place | Hong Kong | - |