823 research outputs found
Learning Paths to Offshore Outsourcing - From Cost Reduction to Knowledge Seeking
A corporationâs offshore outsourcing may be seen as the result of a discrete, strategic decision taken in response to an increasing pressure from worldwide competition. However, empirical evidence of a representative cross-sector sample of international Danish firms indicates that offshore sourcing in low-cost countries is best described as a learning-by-doing process in which the offshore outsourcing of a corporation goes through a sequence of stages towards sourcing for innovation. Initially, a corporationâs outsourcing is driven by a desire for cost minimization. Over a period of time the outsourcing experience lessens the cognitive limitations of decision-makers as to the advantages that can be achieved through outsourcing in low-cost countries: the insourcer/vendor may not only offer cost advantages, but also quality improvement and innovation. The quality improvements that offshore outsourcing may bring about evoke a realization in the corporation that even innovative processes can be outsourced.Offshore outsourcing, cost reduction, innovation, experiential learning, low-cost countries
Universality of the Linear Potential in Effective Models for the Low Energy QCD coupled with the Dilaton Field
QCD motivated effective models coupled with the cosmological dilaton field
are analyzed. It is shown that all models possess confining solutions with the
linear potential of confinement even thought such solutions are not observed in
the original effective theory. In case of the Pagels-Tomboulis model analytical
solutions are explicit found.Comment: 10 page
General Formalism for Evaluating the Impact of Phase Noise on Bloch Vector Rotations
Quantum manipulation protocols for quantum sensors and quantum computation
often require many single qubit rotations. However, the impact of phase noise
in the field that performs the qubit rotations is often neglected or treated
only for special cases. We present a general framework for calculating the
impact of phase noise on the state of a qubit, as described by its equivalent
Bloch vector. The analysis applies to any Bloch vector orientation, and any
rotation axis azimuthal angle for both a single pulse, and pulse sequences.
Experimental examples are presented for several special cases. We apply the
analysis to commonly used composite -pulse sequences: CORPSE, SCROFULOUS,
and BB1, used to suppress static amplitude and detuning errors, and also to
spin echo sequences. We expect the formalism presented will help guide the
development and evaluation of future quantum manipulation protocols.Comment: 12 pages, 6 figures, submitted to PR
Non-abelian color dielectric - towards the effective model of the low energy QCD
Lattice motivated triplet color scalar field theory is analyzed. We consider
non-minimal as well as covariant derivative coupling with SU(2) gauge fields.
Field configurations generated by external electric sources are presented.
Moreover non-Abelian magnetic monopoles are found. Dependence on the spatial
coordinates in the obtained solutions is identical as in the usual Abelian
case. We show also that after a decomposition of the fields a modified
Faddeev-Niemi action can be obtained. It contains explicit O(3) symmetry
breaking term parameterized by the condensate of an isoscalar field. Due to
that Goldstone bosons observed in the original Faddeev-Niemi model are removed.Comment: 19 page
Observations of velocities, sand concentrations, and fluxes under velocity-asymmetric oscillatory flows
Peer reviewedPublisher PD
Leptogenesis, Dark Matter and Higgs Phenomenology at TeV
We propose an interesting model of neutrino masses to realize leptogenesis
and dark matter at the TeV scale. A real scalar is introduced to naturally
realize the Majorana masses of the right-handed neutrinos. We also include a
new Higgs doublet that contributes to the dark matter of the universe. The
neutrino masses come from the vacuum expectation value of the triplet Higgs
scalar. The right-handed neutrinos are not constrained by the neutrino masses
and hence they could generate leptogenesis at the TeV scale without subscribing
to resonant leptogenesis. In our model, all new particles could be observable
at the forthcoming Large Hardon Collider or the proposed future International
Linear Collider.Comment: 7 pages, 3 figures. References added. Accepted by NP
Dynamical Symmetry and Quantum Information Processing with Electromagnetically Induced Transparency
We study in detail the interesting dynamical symmetry and its applications in
various atomic systems with electromagnetically induced transparency (EIT) in
this paper. By discovering the symmetrical Lie group of various atomic systems,
such as single-atomic-ensemble composed of complex -level atoms, and
-atomic-ensemble and even multi-atomic-ensemble system composed of of
-level atoms etc., one can obtain the general definition of dark-state
polaritons (DSPs), and then the dark-states of these different systems. The
symmetrical properties of the multi-level system and multi-atomic-ensemble
system are shown to be dependent on some characteristic parameters of the EIT
system. Furthermore, a controllable scheme to generate quantum entanglement
between lights or atoms via quantized DSPs theory is discussed and the
robustness of this scheme is analyzed by confirming the validity of adiabatic
passage conditions in this paper.Comment: 14pages, 2figures, Phys. Lett. A, In prin
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