11,262 research outputs found
Fluctuation theorems in presence of information gain and feedback
In this study, we rederive the fluctuation theorems in presence of feedback,
by assuming the known Jarzynski equality and detailed fluctuation theorems. We
first reproduce the already known work theorems for a classical system, and
then extend the treatment to the other classical theorems. For deriving the
extended quantum fluctuation theorems, we have considered open systems. No
assumption is made on the nature of environment and the strength of system-bath
coupling. However, it is assumed that the measurement process involves
classical errors.Comment: 8 pages, 1 figur
Role of NGOs in irrigation development and management in Nepal: Proceedings of the National Workshop on the Role of NGOs in Irrigation Development and Management in Nepal, Nepal Administrative Staff College, Jawalakhel, Lalitpur, Nepal, 29-30 September 1992
Agricultural manpower / Non-governmental organizations / Rural development / Irrigation management / Nepal
Comment on "Groverian Entanglement Measure and Evolution of Entanglement in Search Algorithm for n(= 3, 5)-Qubit Systems with Real Coefficients" (Volume 6, Number 4, August 2007), by Arti Chamoli and C. M. Bhandari
We point out that the main results-the analytic expressions for the Groverian
Measure of Entanglement, in the above mentioned paper are erroneous. The
technical mistake of the paper is discussed. It is shown by an explicit example
that the formula for calculating the Groverian measure yields G(|\psi>) = 0 for
some entangled states.Comment: 4 pages, published online in Quantum Info. Process. on 24 July 200
The emotional valence of subliminal priming effects perception of facial expressions
We investigated, in young healthy subjects, how the affective content of subliminally
presented priming images and their specific visual attributes impacted conscious
perception of facial expressions. The priming images were broadly categorised as
aggressive, pleasant, or neutral and further subcategorised by the presence of a face and
by the centricity (egocentric or allocentric vantage-point) of the image content. Subjects
responded to the emotion portrayed in a pixelated target-face by indicating via key-press
if the expression was angry or neutral. Priming images containing a face compared to
those not containing a face significantly impaired performance on neutral or angry targetface
evaluation. Recognition of angry target-face expressions was selectively impaired by
pleasant prime images which contained a face. For egocentric primes, recognition of
neutral target-face expressions was significantly better than of angry expressions. Our
results suggest that, first, the affective primacy hypothesis which predicts that affective
information can be accessed automatically, preceding conscious cognition, holds true in
subliminal priming only when the priming image contains a face. Second, egocentric
primes interfere with the perception of angry target-face expressions suggesting that this
vantage-point, directly relevant to the viewer, perhaps engages processes involved in
action preparation which may weaken the priority of affect processing.Accepted manuscrip
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