The Collaborative Development of an Occupational Psychology Internship: Students and Employers as Partners

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Scalability of quantum computation with addressable optical lattices

We make a detailed analysis of error mechanisms, gate fidelity, and scalability of proposals for quantum computation with neutral atoms in addressable (large lattice constant) optical lattices. We have identified possible limits to the size of quantum computations, arising in 3D optical lattices from current limitations on the ability to perform single qubit gates in parallel and in 2D lattices from constraints on laser power. Our results suggest that 3D arrays as large as 100 x 100 x 100 sites (i.e., $\sim 10^6$ qubits) may be achievable, provided two-qubit gates can be performed with sufficiently high precision and degree of parallelizability. Parallelizability of long range interaction-based two-qubit gates is qualitatively compared to that of collisional gates. Different methods of performing single qubit gates are compared, and a lower bound of $1 \times 10^{-5}$ is determined on the error rate for the error mechanisms affecting $^{133}$Cs in a blue-detuned lattice with Raman transition-based single qubit gates, given reasonable limits on experimental parameters.Comment: 17 pages, 5 figures. Accepted for publication in Physical Review

Diversity, urban space and the right to the provincial city

Using three vignettes of the same physical space this article contributes to understanding of how the right to the city is contested in provincial England in the early twenty-first century. Oral history and ethnographic material gathered in Peterborough between 2010 and 2012 are drawn on to shed new light on the politics of diversity and urban space. This highlights the multiple place attachments and trans-spatial practices of all residents, including the white ethnic majority, as well as contrasting forms of active intervention in space with their different temporalities and affective intensities. The article carries its own diversity politics, seeking to reduce the harm done by racism through challenging the normalisation of the idea of a local, indigenous population, left out by multiculturalism. It simultaneously raises critical questions about capitalist regeneration strategies in terms of their impact both on class inequality and on the environment

Charged-rotating black holes and black strings in higher dimensional Einstein-Maxwell theory with a positive cosmological constant

We present arguments for the existence of charged, rotating black holes in $d=2N+1$ dimensions, with $d\geq 5$ with a positive cosmological constant. These solutions posses both, a regular horizon and a cosmological horizon of spherical topology and have $N$ equal-magnitude angular momenta. They approach asymptotically the de Sitter spacetime background. The counterpart equations for $d=2N+2$ are investigated, by assuming that the fields are independant of the extra dimension $y$, leading to black strings solutions. These solutions are regular at the event horizon. The asymptotic form of the metric is not the de Sitter form and exhibit a naked singularity at finite proper distance.Comment: 21 pages, 9 figure

Including Best Available Science in the Designation and Protection of Critical Areas Under the Growth Management Act

This Article discusses the meaning of these latter two requirements: the requirements to include best available science and to give special consideration to the conservation of anadromous fisheries. Section II defines best available science by examining the fundamental characteristics of scientific information applied in the context of the GMA. Expanding on the work of a technical team convened by DCTED, this Article suggests an approach useful for identifying scientific information and assessing which of that information should be considered the best available science. Section III concludes that the requirement of RCW 36.70A. 172(1) to include best available science is a substantive requirement. Section IV explains the relationship between the two requirements in RCW 36.70A.172(1): the substantive requirement to include best available science and the requirement to give special consideration to anadromous fisheries

The Protection of Wildlife Under Washington\u27s Growth Management Act

Will critical areas and resource lands, as implemented under the GMA, effectively contribute to the conservation of wildlife and wildlife habitat in Washington? The remainder of this Article will address that question. First, this Article briefly describes some aspects of biological diversity that must be understood before proceeding further. Second, it sets forth several central principles from modern conservation biology that are essential for maintaining habitat integrity and species viability and considers their applicability to critical areas and resource lands, as defined by the GMA. Third, it explains how these principles could be used to identify and protect habitat remnants in western Washington. Finally, this Article concludes by arguing that such an approach is absolutely necessary if we are to protect the biological diversity and ecological integrity of the Pacific Northwest

Sequences of dipole black rings and Kaluza-Klein bubbles

We construct new exact solutions to 5D Einstein-Maxwell equations describing sequences of Kaluza-Klein bubbles and dipole black rings. The solutions are generated by 2-soliton transformations from vacuum black ring - bubble sequences. The properties of the solutions are investigated. We also derive the Smarr-like relations and the mass and tension first laws in the general case for such configurations of Kaluza-Klein bubbles and dipole black rings. The novel moment is the appearance of the magnetic flux in the Smarr-like relations and the first laws.Comment: 26 pages, 1 figur

Including Best Available Science in the Designation and Protection of Critical Areas Under the Growth Management Act

This Article discusses the meaning of these latter two requirements: the requirements to include best available science and to give special consideration to the conservation of anadromous fisheries. Section II defines best available science by examining the fundamental characteristics of scientific information applied in the context of the GMA. Expanding on the work of a technical team convened by DCTED, this Article suggests an approach useful for identifying scientific information and assessing which of that information should be considered the best available science. Section III concludes that the requirement of RCW 36.70A. 172(1) to include best available science is a substantive requirement. Section IV explains the relationship between the two requirements in RCW 36.70A.172(1): the substantive requirement to include best available science and the requirement to give special consideration to anadromous fisheries

Black strings with negative cosmological constant: inclusion of electric charge and rotation

We generalize the vacuum static black strings with negative cosmological constant recently discussed in literature, by including an electromagnetic field. These higher-dimensional configurations have no dependence on the `compact' extra dimension, and their boundary topology is the product of time and $S^{d-3}\times S^1$ or $H^{d-3}\times S^1$. Rotating generalizations of the even dimensional black string configurations are considered as well. Different from the static, neutral case, no regular limit is found for a vanishing event horizon radius. We explore numerically the general properties of such solutions and, using a counterterm prescription, we compute their conserved charges and discuss their thermodynamics. We find that the thermodynamics of the black strings follows the pattern of the corresponding black hole solutions in AdS backgrounds.Comment: 35 pages, 8 figures, final versio

Layered architecture for quantum computing

We develop a layered quantum computer architecture, which is a systematic framework for tackling the individual challenges of developing a quantum computer while constructing a cohesive device design. We discuss many of the prominent techniques for implementing circuit-model quantum computing and introduce several new methods, with an emphasis on employing surface code quantum error correction. In doing so, we propose a new quantum computer architecture based on optical control of quantum dots. The timescales of physical hardware operations and logical, error-corrected quantum gates differ by several orders of magnitude. By dividing functionality into layers, we can design and analyze subsystems independently, demonstrating the value of our layered architectural approach. Using this concrete hardware platform, we provide resource analysis for executing fault-tolerant quantum algorithms for integer factoring and quantum simulation, finding that the quantum dot architecture we study could solve such problems on the timescale of days.Comment: 27 pages, 20 figure