Results 11 to 20 of about 8,032,026 (299)

Nilpotent completely positive maps [PDF]

open access: yesPositivity, 2013
10 ...
Bhat, B. V. Rajarama, Mallick, Nirupama
openaire   +2 more sources

When the Assignment Map Is Completely Positive [PDF]

open access: yesOpen Systems & Information Dynamics, 2018
Finding the general set of system-environment states {ρSE} for which the reduced dynamics of the system is completely positive (CP) is the subject of some recent works. An advance in this context appeared in [7], where the problem was solved for the case of CP assignment map. Here, we restate this result using the framework introduced in [8]. This, we
Iman Sargolzahi, Sayyed Yahya Mirafzali
openaire   +3 more sources

Mapping groundwater vulnerability using drastic method [PDF]

open access: yesE3S Web of Conferences, 2023
Preventive management and protection of groundwater were to create a groundwater vulnerability map. This map provided information distribution on the level of vulnerability to groundwater contamination in an area.
Nurfahasdi Meutia   +5 more
doaj   +1 more source

BURES DISTANCE FOR COMPLETELY POSITIVE MAPS [PDF]

open access: yesInfinite Dimensional Analysis, Quantum Probability and Related Topics, 2013
Bures had defined a metric on the set of normal states on a von Neumann algebra using GNS representations of states. This notion has been extended to completely positive maps between C*-algebras by Kretschmann, Schlingemann and Werner. We present a Hilbert C*-module version of this theory.
Bhat, B. V. Rajarama, Sumesh, K.
openaire   +2 more sources

Quantitative Risk Assessment of Exposure to Mycobacterium avium subsp. paratuberculosis (MAP) via Different Types of Milk for the Slovenian Consumer

open access: yesFoods, 2022
This study aimed to assess the risk of exposure to Mycobacterium avium subsp. paratuberculosis (MAP) via milk for the Slovenian consumer. MAP is suspected to be associated with several diseases in humans, therefore the risk of exposure should be better ...
Tanja Knific   +5 more
doaj   +1 more source

Completely Positive Maps [PDF]

open access: yes, 2017
We have seen that C*-algebras boast a number of good structural properties that distinguish them from arbitrary Banach algebras. There are various types of maps one could consider between C*-algebras which aim at preserving particular C*-algebraic properties.
  +4 more sources

There Are Many More Positive Maps Than Completely Positive Maps [PDF]

open access: yesInternational Mathematics Research Notices, 2017
Abstract A $\ast$-linear map $\Phi$ between matrix spaces is positive if it maps positive semidefinite matrices to positive semidefinite ones, and is called completely positive if all its ampliations $I_n\otimes \Phi$ are positive. In this article, quantitative bounds on the fraction of positive maps that are completely positive are ...
Klep, Igor   +3 more
openaire   +2 more sources

A COMPLETE FOS APPROACH FOR INDOOR CROWDSOURCED MAPPING: CASE STUDY ON SAPIENZA UNIVERSITY OF ROME FACULTIES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Indoor mapping is an essential process in several applications such as the visualization of space and its utilization, security and resource planning, emergency planning and location-based alerts and, last but not least, indoor navigation.
A. Mascitelli   +4 more
doaj   +1 more source

Positive maps that are not completely positive [PDF]

open access: yesPhysical Review A, 2000
The concept of the {\em half density matrix} is proposed. It unifies the quantum states which are described by density matrices and physical processes which are described by completely positive maps. With the help of the half-density-matrix representation of Hermitian linear map, we show that every positive map which is not completely positive is a ...
openaire   +2 more sources

On the Debate Concerning the Proper Characterisation of Quantum Dynamical Evolution [PDF]

open access: yes, 2012
There has been a long-standing and sometimes passionate debate between physicists over whether a dynamical framework for quantum systems should incorporate not completely positive (NCP) maps in addition to completely positive (CP) maps.
Cuffaro, Michael E.   +3 more
core   +1 more source

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