Flamingo Vol. IX N 3

Anonymous. Untitled. Prose. 1. Anonymous. Untitled. Prose. 2. Anonymous. Untitled. Prose. 3. Ollapod, Cornell. Untitled. Prose. 3. Anonymous. Untitled. Prose. 4. Anonymous. Untitled. Prose. 5. Smith, Reed. Untitled. Cartoon. 8. Anonymous. Gripes and Groans . Prose. 9. J.C.K. You Disgraceful Being, She Said . Picture. 10. Anonymous. Untitled. Prose. 10. Anonymous. Homecoming . Prose. 1. Anonymous. My Girl . Prose. 1. McDonald, George. Untitled. Picture. 11. O\u27Dell, Dorothy. Edifying Adventures of Alice (In Wonderland) . Prose. 12. Anonymous. I. Though Stuff . Prose. 12. Anonymous. Untitled. Prose. 12. Anonymous. Untitled. Prose. 15. Anonymous. Hi-Glims of Denison\u27s History . Prose. 16. Anonymous. Hi-Glims of Denison\u27s History . Picture. 16. Anonymous. Untitled. Prose. 16. Anonymous. Geography of a Single Woman\u27s Life . Prose. 16. Anonymous. II. Hard-Up Stuff . Prose. 16. Anonymous. Fraternity Bridge . Prose. 16. Anonymous. Introducing-Miss 1931 . Prose. 17. Anonymous. III. Big (Bad) Stuff) . Prose. 18. Anonymous. Untitled. Prose. 18. Anonymous. With Horseradish honors . Prose. 18. Anonymous. It\u27s Best Friends . Prose. 18. Anonymous. Table Talk . Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. IV. Blankety-Blank Stuff . Prose. 19. Anonymous. V. Mighty (Old) Stuff). Prose. 20. Anonymous. Untitled. Prose. 20. Anonymous. Untitled. Prose. 21. Anonymous. Homecoming . Picture. 21. Shiokawa, Richard K. Untitled. Picture. 21. Anonymous. Ain\u27t It So . Prose. 21. Anonymous. book Nook . Prose. 22. Anonymous. Untitled. Prose. 26. Life. Untitled. Prose. 26. Wampus. Untitled. Prose. 26. Anonymous. Untitled. Prose. 27. Gargoyle. Untitled. Prose. 27. Froth. Untitled. Prose. 27. Anonymous. Untitled. Prose. 28. Texas Ranger. Untitled. Prose. 28. Medley. Untitled. Prose. 28. Gargoyle. Untitled. Prose. 29. Cracker. Untitled. Prose. 29. Harvard Lampoon. Untitled. Prose. 29. Texas Ranger. Untitled. Prose. 29. Frivol. Untitled. Prose. 29. Princeton Tiger. Untitled. Prose. 30. Barnacle. Untitled. Prose. 30. Beanpot. Untitled. Prose. 30. Gargoyle. Untitled. Prose. 30. Pup. Untitled. Prose. 31. Pennsylvania Punch Bowl. Untitled. Prose. 31. Penn State Froth. Untitled. Prose. 31. Anonymous. Untitled. Prose. 32. Gargoyle. Untitled. Prose. 32. Smrcina, Orville. Things That Freshmen Do Know . Picture. 13

Flow profiling of a surface acoustic wave nanopump

The flow profile in a capillary gap and the pumping efficiency of an acoustic micropump employing Surface Acoustic Waves is investigated both experimentally and theoretically. Such ultrasonic surface waves on a piezoelectric substrate strongly couple to a thin liquid layer and generate an internal streaming within the fluid. Such acoustic streaming can be used for controlled agitation during, e.g., microarray hybridization. We use fluorescence correlation spectroscopy and fluorescence microscopy as complementary tools to investigate the resulting flow profile. The velocity was found to depend on the applied power somewhat weaker than linearly and to decrease fast with the distance from the ultrasound generator on the chip.Comment: 12 pages 20 figure

Decoherence and the rate of entropy production in chaotic quantum systems

We show that for an open quantum system which is classically chaotic (a quartic double well with harmonic driving coupled to a sea of harmonic oscillators) the rate of entropy production has, as a function of time, two relevant regimes: For short times it is proportional to the diffusion coefficient (fixed by the system--environment coupling strength). For longer times (but before equilibration) there is a regime where the entropy production rate is fixed by the Lyapunov exponent. The nature of the transition time between both regimes is investigated.Comment: Revtex, 4 pages, 3 figures include

Relativistic Quantum Information in Detectors-Field Interactions

We review Unruh-DeWitt detectors and other models of detector-field interaction in a relativistic quantum field theory setting as a tool for extracting detector-detector, field-field and detector-field correlation functions of interest in quantum information science, from entanglement dynamics to quantum teleportation. We in particular highlight the contrast between the results obtained from linear perturbation theory which can be justified provided switching effects are properly accounted for, and the nonperturbative effects from available analytic expressions which incorporate the backreaction effects of the quantum field on the detector behaviour.Comment: 21 pages, 3 figures. Prepared for the special focus issue on RQ

Decoherence, Chaos, and the Correspondence Principle

We present evidence that decoherence can produce a smooth quantum-to-classical transition in nonlinear dynamical systems. High-resolution tracking of quantum and classical evolutions reveals differences in expectation values of corresponding observables. Solutions of master equations demonstrate that decoherence destroys quantum interference in Wigner distributions and washes out fine structure in classical distributions bringing the two closer together. Correspondence between quantum and classical expectation values is also re-established.Comment: 4 pages, 2 figures (color figures embedded at low resolution), uses RevTeX plus macro (included). Phys. Rev. Lett. (in press

Finite Number and Finite Size Effects in Relativistic Bose-Einstein Condensation

Bose-Einstein condensation of a relativistic ideal Bose gas in a rectangular cavity is studied. Finite size corrections to the critical temperature are obtained by the heat kernel method. Using zeta-function regularization of one-loop effective potential, lower dimensional critical temperatures are calculated. In the presence of strong anisotropy, the condensation is shown to occur in multisteps. The criteria of this behavior is that critical temperatures corresponding to lower dimensional systems are smaller than the three dimensional critical temperature.Comment: 18 pages, 9 figures, Fig.3 replaced, to appear in Physical Review

Decoherence, einselection, and the quantum origins of the classical

Decoherence is caused by the interaction with the environment. Environment monitors certain observables of the system, destroying interference between the pointer states corresponding to their eigenvalues. This leads to environment-induced superselection or einselection, a quantum process associated with selective loss of information. Einselected pointer states are stable. They can retain correlations with the rest of the Universe in spite of the environment. Einselection enforces classicality by imposing an effective ban on the vast majority of the Hilbert space, eliminating especially the flagrantly non-local "Schr\"odinger cat" states. Classical structure of phase space emerges from the quantum Hilbert space in the appropriate macroscopic limit: Combination of einselection with dynamics leads to the idealizations of a point and of a classical trajectory. In measurements, einselection replaces quantum entanglement between the apparatus and the measured system with the classical correlation.Comment: Final version of the review, with brutally compressed figures. Apart from the changes introduced in the editorial process the text is identical with that in the Rev. Mod. Phys. July issue. Also available from http://www.vjquantuminfo.or

Stochastic Gravity: A Primer with Applications

Stochastic semiclassical gravity of the 90's is a theory naturally evolved from semiclassical gravity of the 70's and 80's. It improves on the semiclassical Einstein equation with source given by the expectation value of the stress-energy tensor of quantum matter fields in curved spacetimes by incorporating an additional source due to their fluctuations. In stochastic semiclassical gravity the main object of interest is the noise kernel, the vacuum expectation value of the (operator-valued) stress-energy bi-tensor, and the centerpiece is the (stochastic) Einstein-Langevin equation. We describe this new theory via two approaches: the axiomatic and the functional. The axiomatic approach is useful to see the structure of the theory from the framework of semiclassical gravity. The functional approach uses the Feynman-Vernon influence functional and the Schwinger-Keldysh close-time-path effective action methods which are convenient for computations. It also brings out the open systems concepts and the statistical and stochastic contents of the theory such as dissipation, fluctuations, noise and decoherence. We then describe the application of stochastic gravity to the backreaction problems in cosmology and black hole physics. Intended as a first introduction to this subject, this article places more emphasis on pedagogy than completeness.Comment: 46 pages Latex. Intended as a review in {\it Classical and Quantum Gravity

EMIC waves converted from equatorial noise due to M/Q=2 ions in the plasmasphere: Observations from Van Allen Probes and Arase

Equatorial noise (EN) emissions are observed inside and outside the plasmapause. EN emissions are referred to as magnetosonic mode waves. Using data from Van Allen Probes and Arase, we found conversion from EN emissions to electromagnetic ion cyclotron (EMIC) waves in the plasmasphere and in the topside ionosphere. A low frequency part of EN emissions becomes EMIC waves through branch splitting of EN emissions, and the mode conversion from EN to EMIC waves occurs around the frequency of M/Q=2 (deuteron and/or alpha particles) cyclotron frequency. These processes result in plasmaspheric EMIC waves. We investigated the ion composition ratio by characteristic frequencies of EN emissions and EMIC waves and obtained ion composition ratios. We found that the maximum composition ratio of M/Q=2 ions is ~10% below 3000 km. The quantitative estimation of the ion composition will contribute to improving the plasma model of the deep plasmasphere and the topside ionosphere