108 research outputs found
Estimating the reduction time of quantum states
An effective description of microscopic measurements is given, in which the
precise moment of probing is not determined. Within this scenario we propose a
scheme that relies on an "attempt" to make a forbidden simultaneous measurement
of two incompatible observables. Although bound to failure in what concerns
this goal, the process can lead to information on a possible non-vanishing time
scale involved in the collapsing of the wave function, even if the
duration of the individual measurements is much larger than .Comment: 5 page
Intra-articular mucilages: behavioural and histological evaluations for a new model of articular pain.
Affine arithmetic-based methodology for energy hub operation-scheduling in the presence of data uncertainty
In this study, the role of self-validated computing for solving the energy hub-scheduling problem in the presence of multiple and heterogeneous sources of data uncertainties is explored and a new solution paradigm based on affine arithmetic is conceptualised. The benefits deriving from the application of this methodology are analysed in details, and several numerical results are presented and discussed
Pomegranate mesocarp against colitis-induced visceral pain in rats: Effects of a decoction and its fractions
Pain Relieving and Neuroprotective Effects of Non-opioid Compound, DDD-028, in the Rat Model of Paclitaxel-Induced Neuropathy
Researching new therapeutic approaches for abdominal visceral pain treatment: Preclinical effects of an assembled system of molecules of vegetal origin
Analytical approach to viscous fingering in a cylindrical Hele-Shaw cell
We report analytical results for the development of the viscous fingering
instability in a cylindrical Hele-Shaw cell of radius a and thickness b. We
derive a generalized version of Darcy's law in such cylindrical background, and
find it recovers the usual Darcy's law for flow in flat, rectangular cells,
with corrections of higher order in b/a. We focus our interest on the influence
of cell's radius of curvature on the instability characteristics. Linear and
slightly nonlinear flow regimes are studied through a mode-coupling analysis.
Our analytical results reveal that linear growth rates and finger competition
are inhibited for increasingly larger radius of curvature. The absence of
tip-splitting events in cylindrical cells is also discussed.Comment: 14 pages, 3 ps figures, Revte
A conjugate for the Bargmann representation
In the Bargmann representation of quantum mechanics, physical states are
mapped into entire functions of a complex variable z*, whereas the creation and
annihilation operators and play the role of
multiplication and differentiation with respect to z*, respectively. In this
paper we propose an alternative representation of quantum states, conjugate to
the Bargmann representation, where the roles of and
are reversed, much like the roles of the position and momentum operators in
their respective representations. We derive expressions for the inner product
that maintain the usual notion of distance between states in the Hilbert space.
Applications to simple systems and to the calculation of semiclassical
propagators are presented.Comment: 15 page
Strength Evolution of Geomaterials in the Octahedral Plane under Nonisothermal and Unsaturated Conditions
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