2,302 research outputs found
Patterns of sexual behaviour: the law of evidence: back to the future in Australia and England
A recent Victorian Court of Appeal ruling [in Australia] has sparked concerns that a clamp down on the way child abuse cases are handled could thwart convictions. The Court of Appeal justices ruled only cases that are "remarkably" similar would go before the same jury, making it harder for allegations from multiple complainants to be heard together. There are concerns that this will reduce the number of convictions for sexual offences, especially for those against children. This article explores the approach in England and Wales, and Australia to evidence of a pattern of behaviour, focussing on when it is adduced in cases involving sexual abuse. We first consider the shared common law history of the two jurisdictions before exploring how common law and legislative changes have led to surprisingly different positions in the two countries. We conclude by suggesting a simpler and more rational approach which has started to emerge and could be adopted in both countries, and indeed should be considered in any jurisdiction
Analisa Frase ”to Akatharton Pneuma” Dalam Lukas 11:24-26
Dalam dunia ini selalu ada dua kuasa yang berjuang untuk mempengaruhimanusia, kuasa kegelapan melawan kuasa terang Ilahi. Kuasa kegelapan yaitu setandan para pengikutnya bekerja untuk memastikan manusia memperoleh kebinasaanyang pasti. Kuasa terang Ilahi yaitu Roh Kudus bekerja untuk melindungi danmemimpin manusia untuk memperoleh hubungan yang sejati dengan Allah. Manusiatidak dapat mengelak apakah akan berada di bawah kuasa kegelapan atau terang Ilahi.Jika manusia tidak mau bekerja sama dengan Roh Kudus, maka secaraotomatis setan akan menguasai manusia dan menjadikannya sebagai rumahnya yangtetap. Manusia tidak perlu dengan sengaja menyerahkan diri kepada kekuasaan setansupaya dapat dikuasai oleh setan. Hanyalah cukup dengan melalaikan hubungandengan Roh Kudus maka setan akan bertahta di dalam hati manusia danmengendalikanya. Oleh karena itu manusia hanya memiliki satu pilihan,menyerahkan diri sepenuhnya kepada Kristus dan Roh-Nya, atau akan dikuasai olehpenguasa kegelapan itu. Tuhan Yesus menjelaskan hal ini melalui analogi“Kembalinya Roh Jahat” dalam Lukas 11:24-26
Switching the sign of photon induced exchange interactions in semiconductor microcavities with finite quality factors
We investigate coupling of localized spins in a semiconductor quantum dot
embedded in a microcavity with a finite quality factor. The lowest cavity mode
and the quantum dot exciton are coupled forming a polariton, whereas excitons
interact with localized spins via exchange. The finite quality of the cavity Q
is incorporated in the model Hamiltonian by adding an imaginary part to the
photon frequency. The Hamiltonian, which treats photons, spins and excitons
quantum mechanically, is solved exactly. Results for a single polariton clearly
demonstrate the existence of a resonance, sharper as the temperature decreases,
that shows up as an abrupt change between ferromagnetic and antiferromagnetic
indirect anisotropic exchange interaction between localized spins. The origin
of this spin-switching finite-quality-factor effect is discussed in detail
remarking on its dependence on model parameters, i.e., light-matter coupling,
exchange interaction between impurities, detuning and quality factor. For
parameters corresponding to the case of a (Cd,Mn)Te quantum dot, the resonance
shows up for Q around 70 and detuning around 10 meV. In addition, we show that,
for such a quantum dot, and the best cavities actually available (quality
factors better than 200) the exchange interaction is scarcely affected.Comment: 7 figures, submitted to PR
Optimized pulse sequences for suppressing unwanted transitions in quantum systems
We investigate the nature of the pulse sequence so that unwanted transitions
in quantum systems can be inhibited optimally. For this purpose we show that
the sequence of pulses proposed by Uhrig [Phys. Rev. Lett. \textbf{98}, 100504
(2007)] in the context of inhibition of environmental dephasing effects is
optimal. We derive exact results for inhibiting the transitions and confirm the
results numerically. We posit a very significant improvement by usage of the
Uhrig sequence over an equidistant sequence in decoupling a quantum system from
unwanted transitions. The physics of inhibition is the destructive interference
between transition amplitudes before and after each pulse.Comment: 5 figure
Beam splitting and Hong-Ou-Mandel interference for stored light
Storing and release of a quantum light pulse in a medium of atoms in the
tripod configuration are studied. Two complementary sets of control fields are
defined, which lead to independent and complete photon release at two stages.
The system constitutes a new kind of a flexible beam splitter in which the
input and output ports concern photons of the same direction but well separated
in time. A new version of Hong-Ou-Mandel interference is discussed.Comment: 8 pages, 3 figure
Quantum engineering of squeezed states for quantum communication and metrology
We report the experimental realization of squeezed quantum states of light,
tailored for new applications in quantum communication and metrology. Squeezed
states in a broad Fourier frequency band down to 1 Hz has been observed for the
first time. Nonclassical properties of light in such a low frequency band is
required for high efficiency quantum information storage in electromagnetically
induced transparency (EIT) media. The states observed also cover the frequency
band of ultra-high precision laser interferometers for gravitational wave
detection and can be used to reach the regime of quantum non-demolition
interferometry. And furthermore, they cover the frequencies of motions of
heavily macroscopic objects and might therefore support the attempts to observe
entanglement in our macroscopic world.Comment: 12 pages, 3 figure
Weak non-linearities and cluster states
We propose a scalable approach to building cluster states of matter qubits
using coherent states of light. Recent work on the subject relies on the use of
single photonic qubits in the measurement process. These schemes have a low
initial success probability and low detector efficiencies cause a serious
blowup in resources. In contrast, our approach uses continuous variables and
highly efficient measurements. We present a two-qubit scheme, with a simple
homodyne measurement system yielding an entangling operation with success
probability 1/2. Then we extend this to a three-qubit interaction, increasing
this probability to 3/4. We discuss the important issues of the overhead cost
and the time scaling, showing how these can be vastly improved with access to
this new probability range.Comment: 5 pages, to appear in Phys. Rev.
Kerr nonlinearities and nonclassical states with superconducting qubits and nanomechanical resonators
We propose the use of a superconducting charge qubit capacitively coupled to
two resonant nanomechanical resonators to generate Yurke-Stoler states, i.e.
quantum superpositions of pairs of distinguishable coherent states 180
out of phase with each other. This is achieved by effectively implementing Kerr
nonlinearities induced through application of a strong external driving field
in one of the resonators. A simple study of the effect of dissipation on our
scheme is also presented, and lower bounds of fidelity and purity of the
generated state are calculated. Our procedure to implement a Kerr nonlinearity
in this system may be used for high precision measurements in nanomechanical
resonators.Comment: 5 pages, 2 figures, fixed typo
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