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  2. Quantum boomerang effect - Wikipedia

    en.wikipedia.org/wiki/Quantum_boomerang_effect

    A path contributing to ^ at some time must have negative momentum by definition; since every part of the wavepacket originated at the same positive momentum behavior, this path from the origin to and from initial momentum to final momentum can be time-reversed and translated to create another path from back to the origin with the same initial ...

  3. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    angular momentum. Also (rarely) moment of momentum or rotational momentum. The rotational equivalent of linear momentum. It is an important quantity in physics because it is a conserved quantity–that is, the total angular momentum of a closed system remains constant. angular velocity (ω)

  4. Magnetorotational instability - Wikipedia

    en.wikipedia.org/wiki/Magnetorotational_instability

    This means that m i experiences a retarding torque, loses angular momentum, and must fall inward to an orbit of smaller radius, corresponding to a smaller angular momentum. m o, on the other hand, experiences a positive torque, acquires more angular momentum, and moves outward to a higher orbit. The spring stretches yet more, the torques become ...

  5. Carhart four-factor model - Wikipedia

    en.wikipedia.org/wiki/Carhart_four-factor_model

    A stock would be considered to show momentum if its prior 12-month average of returns is positive, or greater. Similar to the three factor model, momentum factor is defined by self-financing portfolio of (long positive momentum)+(short negative momentum). Momentum strategies continue to be popular in financial markets.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Population momentum - Wikipedia

    en.wikipedia.org/wiki/Population_momentum

    Population momentum has implications for population policy for a number of reasons. 1. With respect to high-fertility countries (for example in the developing world), a positive population momentum, meaning that the population is increasing, states that these countries will continue to grow despite large and rapid declines in fertility. 2.

  8. Zitterbewegung - Wikipedia

    en.wikipedia.org/wiki/Zitterbewegung

    In quantum mechanics, the zitterbewegung term vanishes on taking expectation values for wave-packets that are made up entirely of positive- (or entirely of negative-) energy waves. The standard relativistic velocity can be recovered by taking a Foldy–Wouthuysen transformation, when the positive and negative components are decoupled. Thus, we ...

  9. Pet Supplies Retailer Chewy's Q3 Performance Builds On Q2 ...

    www.aol.com/pet-supplies-retailer-chewys-q3...

    On Wednesday, Chewy Inc. (NYSE:CHWY) reported a third-quarter adjusted EPS of $0.20, up 33.3% year-over-year, compared to the consensus of $0.08. The retailer of pet supplies reported sales of $2. ...