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Paper Abstract and Keywords
Presentation 2019-05-21 09:40
Every entangled state provides an advantage in classical communication
Stefan Bauml (TU Delft), Andreas Winter (UAB), Dong Yang (Univ. Bergen)
Abstract (in Japanese) (See Japanese page) 
(in English) We investigate whether for any entangled state, including bound entangled states, there exists a quantum channel the classical capacity of which can be increased by providing the state as an additional resource. We show, for any entangled state, the existence of a quantum memory channel the feedback-assisted classical capacity with product encodings of which can be increased by using the state as a resource. Using a different channel construction, we also provide a sufficient entropic condition for an advantage in classical communication and thus provide an example of a state that is not distillable by means of one-way LOCC, but can provide an advantage in the classical communication. As separable states cannot provide such an advantage, our condition also provides an entanglement witness.
Keyword (in Japanese) (See Japanese page) 
(in English) Classical Communication over Quantum Channel / Entanglement Assistance / Bound Entanglement / / / / /  
Reference Info. IEICE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee QIT  
Conference Date 2019-05-20 - 2019-05-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu University, Chikushi Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2019-05-QIT 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Every entangled state provides an advantage in classical communication 
Sub Title (in English)  
Keyword(1) Classical Communication over Quantum Channel  
Keyword(2) Entanglement Assistance  
Keyword(3) Bound Entanglement  
1st Author's Name Stefan Bauml  
1st Author's Affiliation Delft University of Technology (TU Delft)
2nd Author's Name Andreas Winter  
2nd Author's Affiliation Universitat Autonoma de Barcelona (UAB)
3rd Author's Name Dong Yang  
3rd Author's Affiliation University of Bergen (Univ. Bergen)
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Date Time 2019-05-21 09:40:00 
Presentation Time 20 
Registration for QIT 
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