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The purpose of these notes is to discuss the relation between the additivity questions regarding the quantities (Holevo) capacity of a quantum channel T and entanglement of formation of a bipartite state ρ. In particular, using the Stinespring dilation theorem, we give a formula for the channel capacity involving entanglement of formation. This can be used… (More)

- Masahito Hayashi, Hiroshi Imai, Keiji Matsumoto, Mary Beth Ruskai, Toshiyuki Shimono
- Quantum Information & Computation
- 2005

An example is given of a qubit quantum channel which requires four inputs to maximize the Holevo capacity. The example is one of a family of channels which are related to 3-state channels. The capacity of the product channel is studied and numerical evidence presented which strongly suggests additivity. The numerical evidence also supports a conjecture… (More)

- Yuki Saito, Masafumi Yoshida, +6 authors Takahiro Asakage
- Cancer
- 2013

BACKGROUND
The prevalence and prognostic value of human papillomavirus-related oropharyngeal squamous cell carcinoma (OPSCC) in Japan has not been evaluated.
METHODS
Over a 12-year period, the authors used immunohistochemistry to evaluate the expression of p16 (a cyclin-dependent kinase inhibitor and tumor suppressor) in samples from 173 patients with… (More)

This report gives a lower bound of entanglement cost for antisymmetric states of bipartite d-level systems to be log 2 d d−1 ebit (for d = 3, Ec ≥ 0.585 . . . ). The paper [1] claims that the value is equal to one ebit for d = 3 , since all of the eigenvalues of reduced matrix of any pure states affiliating to H − is not greater than 2 −N thus the von… (More)

- Toshiyuki Shimono
- UMC
- 2002

- Toshiyuki Shimono
- 2016 IEEE International Conference on Big Data…
- 2016

Despite the existence of data analysis tools such as R, SQL, Excel and others, it is still insufficient to cope with today's big data analysis needs. The author proposes a CUI (Character User Interface) toolset with dozens of functions to neatly handle tabular data in TSV (Tab Separated Values) files. It implements many basic and useful functions that have… (More)

Quantum entanglement is the quantum information processing resource. Thus it is of importance to understand how much of entanglement particular quantum states have, and what kinds of laws entanglement and also transformation between entanglement states subject to. Therefore, it is essentialy important to use proper measures of entanglement which have nice… (More)

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