9,234 research outputs found
violation induced by the double resonance for pure annihilation decay process in Perturbative QCD
In Perturbative QCD (PQCD) approach we study the direct violation in the
pure annihilation decay process of
induced by the and
double resonance effect. Generally, the violation is small in the
pure annihilation type decay process. However, we find that the violation
can be enhanced by double interference when the invariant masses
of the pairs are in the vicinity of the resonance. For
the decay process of , the
maximum violation can reach 28.64{\%}
Weak measurement combined with quantum delayed-choice experiment and implementation in optomechanical system
Weak measurement [1,19] combined with quantum delayed-choice experiment that
use quantum beam splitter instead of the beam splitter give rise to a
surprising amplification effect, i.e., counterintuitive negative amplification
effect. We show that this effect is caused by the wave and particle behaviours
of the system to be and can't be explained by a semiclassical wave theory, due
to the entanglement of the system and the ancilla in quantum beam splitter. The
amplification mechanism about wave-particle duality in quantum mechanics lead
us to a scheme for implementation of weak measurement in optomechanical system
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