Kavli Affiliate: Roel H. M. Smit | Summary:Pt is known to show spontaneous formation of monatomic chains upon breaking a metallic contact. From model calculations, these chains are expected to be spin polarized. However, direct experimental evidence for or against magnetism is lacking. Here, we investigate shot noise as a potential source of information on […]
Kavli Affiliate: Zhiting Tian | First 5 Authors: Zhiting Tian, Zhiting Tian, , , | Summary: Solid-state thermoelectric devices are currently used in applications ranging from thermocouple sensors to power generators in satellites, to portable air-conditioners and refrigerators. With the ever-rising demand throughout the world for energy consumption and CO2 reduction, thermoelectric energy conversion has […]
Kavli Affiliate: Kinfai Mak | First 5 Authors: Kit-Ho Mak, Kit-Ho Mak, , , | Summary: Let $p$ be a prime number, $X$ be an absolutely irreducible affine plane curve over $mathbbF_p$, and $g,finmathbbF_p(x,y)$. We study the distribution of the values of the hybrid exponential sums S_n on $ninmathcalI$ for some short interval $mathcalI$. We […]
Kavli Affiliate: Yu V. Nazarov | Summary:The density of Andreev levels in a normal metal ($N$) in contact with two superconductors ($S$) is known to exhibit an induced minigap related to the inverse dwell time. We predict a small secondary gap just below the superconducting gap edge—a feature that has been overlooked so far in […]
Kavli Affiliate: Keith Schwab | Summary:The ability to transport energy is a fundamental property of the two-dimensional Dirac fermions in graphene. Electronic thermal transport in this system is relatively unexplored and is expected to show unique fundamental properties and to play an important role in future applications of graphene, including opto-electronics, plasmonics, and ultra-sensitive bolometry. […]
Kavli Affiliate: Jacqueline Barton| First 5 Authors: Nithyanandan Thyagarajan, Nithyanandan Thyagarajan, , , | Summary:In this paper we explore for the first time the relative magnitudes of three fundamental sources of uncertainty, namely, foreground contamination, thermal noise and sample variance in detecting the HI power spectrum from the Epoch of Reionization (EoR). We derive limits […]
Kavli Affiliate: Daniel Ralph| First 5 Authors: Paul Ralph, Paul Ralph, , , | Summary:Many academics have called for increasing attention to theory in software engineering. Consequently, this paper empirically evaluates two dissimilar software development process theories – one expressing a more traditional, methodical view (FBS) and one expressing an alternative, more improvisational view (SCI). […]
Kavli Affiliate: Mikhail Shapiro | Summary:Simultaneously measuring the activities of all neurons in a mammalian brain at millisecond resolution is a challenge beyond the limits of existing techniques in neuroscience. Entirely new approaches may be required, motivating an analysis of the fundamental physical constraints on the problem. We outline the physical principles governing brain activity […]
Kavli Affiliate: Christopher Ober| First 5 Authors: Ulrike Ober, Ulrike Ober, , , | Summary:The expected level of linkage disequilibrium (LD) in a finite ideal population at equilibrium is of relevance for many applications in population and quantitative genetics. Several recursion formulae have been proposed during the last decades, whose derivations mostly contain heuristic parts […]
Kavli Affiliate: Daniel Ralph| First 5 Authors: Paul Ralph, Paul Ralph, , , | Summary:It is widely accepted that understanding system requirements is important for software development project success. However, this paper presents two novel challenges to the requirements concept. First, where many plausible approaches to achieving a goal are evident, there may be insufficient […]