21,386 research outputs found

    Entropy production and fluctuations in a Maxwell's refrigerator with squeezing

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    Clarifying the impact of quantumness in the operation and properties of thermal machines represents a major challenge. Here we envisage a toy model acting either as an information-driven fridge or as heat-powered information eraser in which coherences can be naturally introduced in by means of squeezed thermal reservoirs. We study the validity of the transient entropy production fluctuation theorem in the model with and without squeezing as well as its decomposition into adiabatic and non-adiabatic contributions. Squeezing modifies fluctuations and introduces extra mechanisms of entropy exchange. This leads to enhancements in the cooling performance of the refrigerator, and to overcoming Landauer's bound in the setup.Comment: 10 pages, 2 figures; v2: small corrections and improvement

    Racing to Regulation: A Comparative Analysis of Virtual Currency Regulation in Alaska And the Proposed Alaska Money Services Act Carlos Manzano

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    The emergence of virtual currencies has revolutionized the financial industry by creating an alternative form of payment that seeks to insulate individuals from government and bank influence. Yet, federal regulation of virtual currency has remained limited. Many state legislators have rushed to fill the gap by enacting laws regulating virtual currency use and transmission. This state-by-state approach has led to significant variation between state regulatory regimes, creating a regulatory spectrum of lenient to strict regulatory approaches. In March 2017, Alaska House Representatives Zach Fansler and Sam Kito proposed the Alaska Money Services Act to require licensing for virtual currency activity. The bill’s proposed requirements lean towards the strict side of the regulatory spectrum, bringing the potential to drive virtual currency businesses away from Alaska. This Note proposes that Alaska legislators enact virtual currency legislation that adequately balances technological innovation with consumer protection through several recommendations, including: (1) enacting virtual currency-specific legislation rather than importing regulation into existing and outdated laws, (2) clearly defining the legislation’s scope, (3) collaborating with stakeholders in enacting legislation, (4) including an on-ramp to ensure emerging startups are not overly burdened, (5) tailoring the level of regulation to the level of risk a virtual currency business poses to Alaska consumers by tiering requirements to transmission volume, (6) requiring only relevant information in the application, and (7) reducing agency discretion to revoke licenses

    Is the Book Really Better?: Comparing the Facets of Fantasy Apparent in C.S. Lewis\u27s \u3ci\u3eThe Lion, the Witch and the Wardrobe\u3c/i\u3e and its 2005 Cinematic Adaptation

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    “Once there were four children whose names were Peter, Susan, Edmund and Lucy. This story is about something that happened to them when they were sent away from London during the war because of the air-raids” (Lewis 2). Sixty-eight years ago, these two simple lines introduced the world to the Pevensie children, who were destined to travel through a wardrobe into one of literature’s most creative, compelling, and enveloping fantasy worlds. Seven books later, the Pevensie children were kings and queens, yes, but considering the hugely expanded scope, they were merely inhabitants of the sprawling lore of The Chronicles of Narnia. Narnia, then, became much more than a world beyond a wardrobe. Narnia, the place and the lore, became a staple of any sturdy fantasy diet
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