Nonexistence of Entanglement Sudden Death in High NOON States

We study the dynamics of entanglement in continuous variable quantum systems (CVQS). Specifically, we study the phenomena of Entanglement Sudden Death (ESD) in general two-mode-N-photon states undergoing pure dephasing. We show that for these states, ESD never occurs. These states are generalizations of the so-called High NOON states, shown to decrease the Rayleigh limit of lambda to lambda/N, which promises great improvement in resolution of interference patterns if states with large N are physically realized. However, we show that in dephasing NOON states, the time to reach V_crit, critical visibility, scales inversely with N^2. On the practical level, this shows that as N increases, the visibility degrades much faster, which is likely to be a considerable drawback for any practical application of these states.Comment: 4 pages, 1 figur

Linear optical scheme for producing polarization-entangled NOON states

We propose a linear optical scheme that can conditionally generate high NOON states using polarization modes. This scheme provides advantages over the previous proposals on path-entangled NOON states in view of success probability or required resources of optical elements. We also investigate two experimental schemes feasible within existing technology that can produce the NOON-like or the NOON state for N = 4.Comment: Published version, 5 pages, 4 figure

High Noon at the EU corral. An economic plan for Europe, September 2011

The 2007+ credit crunch and economic crisis put European governments in severe debt, with talk about a Greek partial default. It also put the European banks into a zombie condition, while under Basel III the capital requirement rises from 8% to 10.5% (which requirement does not cover public debt since that is considered reliable). Fiscal measures concern tax structures and that Germany and Holland eliminate their surplusses on the external account. A monetary measure is that the European Central Bank as lender of last resort helps to prevent a crisis of confidence. The ECB can create capital and neutralise this by higher reserve requirements. Two reasonable measures are: (1) EUR 400 billion of European Recovery Capital (ERC) will reduce Greek and Italian debt to 100% of their GDP (using 2010 data). Greece and Italy on their part can have a wealth tax or create 40 year leases (implictly at 10 billion per year excluding interest) like Hong Kong once was for investment areas under foreign law (think of Magna Graecia). (2) EUR 400 billion can be injected in eurozone equity (and not eurozone bonds) in banks to allow the increase from the 8% to the 10.5% target. This equity can be managed by newly created independent ERC Investment Banks (ERBs), where the shares are allocated to eurozone member states in proportion to their GDP. This partial nationalisation would reduce eurozone national debts by 4.3% of GDP.Economic stability; monetary policy; monetary crisis; credit crunch; zombie banks; euro; European Central Bank; fiscal policy; tax; external balance

Reivindicació o màgia a High Noon?

Abstract not availabl

UVUDF: UV Luminosity Functions at the Cosmic High Noon

We present the rest-1500 Å UV luminosity functions (LF) for star-forming galaxies during the cosmic high noon—the peak of cosmic star formation rate at 1.5 < z < 3. We use deep NUV imaging data obtained as part of the Hubble Ultra-Violet Ultra Deep Field (UVUDF) program, along with existing deep optical and NIR coverage on the HUDF. We select F225W, F275W, and F336W dropout samples using the Lyman break technique, along with samples in the corresponding redshift ranges selected using photometric redshifts, and measure the rest-frame UV LF at z ~ 1.7, 2.2, 3.0, respectively, using the modified maximum likelihood estimator. We perform simulations to quantify the survey and sample incompleteness for the UVUDF samples to correct the effective volume calculations for the LF. We select galaxies down to M_(UV) = -15.9, -16.3, -16.8 and fit a faint-end slope of α = -1.20^(+0.10)_(-0.13), -1.32^(+0.10)_(-0.14), -1.39^(+0.08)_(-0.12) at 1.4 < z < 1.9, 1.8 < z < 2.6, and 2.4 < z < 3.6, respectively. We compare the star formation properties of z ~ 2 galaxies from these UV observations with results from Hα and UV+IR observations. We find a lack of high-SFR sources in the UV LF compared to the Hα and UV+IR, likely due to dusty SFGs not being properly accounted for by the generic IRX-β relation used to correct for dust. We compute a volume-averaged UV-to-Hα ratio by abundance matching the rest-frame UV LF and Hα LF. We find an increasing UV-to-Hα ratio toward low-mass galaxies (M_∗ ≾ 5 x 10^9 M_⊙). We conclude that this could be due to a larger contribution from starbursting galaxies compared to the high-mass end

High Noon for Microfinance Impact Evaluations: Re-investigating the Evidence from Bangladesh

Recently, microfinance has come under increasing criticism raising questions of the validity of iconic studies which have justified the microfinance phenomenon. This paper applies propensity score matching (PSM), which has become widely used for the analysis of observational data, to the study by Pitt and Khandker (1998) which has been labelled the most rigorous evidence supporting claims that microfinance benefits the poorest especially when targeted on women. After carefully reconstructing the data we differentiate outcomes by gender of borrower, take account of borrowing from several formal and informal sources, and find that the mainly positive impacts of microfinance that we observe are shown by sensitivity analysis to be highly vulnerable to selection on unobservables, and we are therefore not convinced that the relationships between microfinance and outcomes are causal.Microfinance; impact evaluation; Bangladesh; propensity score matching; sensitivity analysis

Whiteness Studies and the Colonial Aesthetic: Western Popular Culture and the Representations of Race

As I have said before, planters are not poetical; but, my heart! if I possessed this place, methinks while young morning blushed, or high noon slept, or gentle dewy evening made nature think and pause, I would stroll upon my terrace, or sit, three parts recumbent, on one of those old oak chairs with Hasting\u27s coronet on it, and forget the world of strife and penury and pain, till I lapsed into a citizen of the other world of peace and plenty and joy

HIgh-Noon States with High Flux of Photons Using coherent Beam Stimulated Non-Collinear Parametric Down Conversion

We show how to reach high fidelity NOON states with a high count rate inside optical interferometers. Recently it has been shown that by mixing squeezed and coherent light at a beamsplitter it is possible to generate NOON states of arbitrary N with a fidelity as high as 94%. (Afek I. et al. Science 328, 879 (2010)). The scheme is based on higher order interference between "quantum" down-converted light and "classical" coherent light. However, this requires optimizing the amplitude ratio of classical to quantum light thereby limiting the overall count rate for the interferometric super-resolution signal. We propose using coherent-beam-stimulated non-collinear down converted light as input to the interferometer. Our scheme is based on stimulation of non-collinear parametric down conversion by two-mode coherent light. We have somehow a better flexibility of choosing the amplitude ratio in generating NOON states. This enables super-resolution intensity exceeding the previous scheme by many orders of magnitude. Therefore we hope to improve the magnitude of N-fold super-resolution in quantum interferometry for arbitrary N by using bright light sources. We give some results for N=4 and 5.Comment: 8 pages, 3 figure

The Black Bruins: Reviewed by Jack Ryan, Gettysburg College

Sergio Leone\u27s Once Upon a Time in the West opens with a nearly wordless fifteen-minute sequence in which three gunmen do nothing more than wait for the arrival of a train at a remote frontier station. Leone, Dario Argento, and Bernardo Bertolucci constructed the film\u27s screenplay out of portions of their favorite classic westerns, and the opening is a homage to High Noon; however, Leone\u27s three gunmen look nothing like the actors in High Noon. Jack Elam and Al Mulock look like they emerged directly from the desiccated landscape surrounding them, and Woody Strode emits a dusty elegance. Elam tracks a fly buzzing over his face, and Mulock cracks his knuckles with vengeance. Strode stands beneath a water tank dripping water on his hat. Each actor is captured in vivid close-ups. Strode, though, stands out. His face is chiseled to perfection, and when he is featured in a full-shot, his body bulges with athletic strength. While his partners look like ragged malcontents, Stode appears like a model from a Ralph Lauren photoshoot. Strode made more than fifty films, three made-for-television movies, and thirteen extended television productions. He acted in films directed by Cecil B. DeMille, John Ford, Richard Brooks, Budd Boetticher, and Stanley Kubrick. In fact, Strode stayed at Ford\u27s home at Ford\u27s request while the director was recovering from a life-threatening illness. Strode starred opposite Kirk Douglas in Kubrick\u27s Spartacus, earning a Golden Globe nomination in 1960 for his portrayal of Draba, a gladiator who chooses not to kill Spartacus after a magnificent fight; rather, Draba scales a twelve-foot-high wall and confronts the Roman emperor, played by Laurence Oliver. Peter Ustinov, who won an Academy Award for Spartacus, called Strode frightfully athletic because of his strength and physical grace (178). Strode was forty-five years old at the time, and he did not use a stunt double. [excerpt