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The New Iron Age
(Nature Publishing Group, 2008)
The discovery of a new class of high-temperature superconductors based on iron tests the limits of current theoretical and computational tools for the understanding of strongly correlated systems.
Quantum algorithm for obtaining the energy spectrum of molecular systems
(Royal Society of Chemistry (RSC), 2008)
Simulating a quantum system is more efficient on a quantum computer than on a classical computer. The time required for solving the Schro¨ dinger equation to obtain molecular energies has been demonstrated to scale ...
Examination of pigments on Thai manuscripts: the first identification of copper citrate
(Wiley-Blackwell, 2008)
Samples from Thai manuscripts dated to the 18th to 20th century were analyzed by Raman spectroscopy and Fourier-transform infrared spectroscopy (FTIR) to determine the pigments used. This suggested a change in palette from ...
Magnetic Trapping of Atomic Nitrogen (\(^{14}\)N) and Cotrapping of NH (\(X\)\(^{3}\)\(\Sigma\) -)
(American Physical Society, 2008)
We observe magnetic trapping of atomic nitrogen (\(^{14}\)N) and cotrapping of ground state imidogen (\(^{14}\)NH, \(X\)\(^{3}\)\(\Sigma\) -). Both are loaded directly from a room temperature beam via buffer gas cooling. ...
Spin Order in Paired Quantum Hall States
(American Physical Society, 2008)
We consider quantum Hall states at even-denominator filling fractions, especially nu=5/2, in the limit of small Zeeman energy. Assuming that a paired quantum Hall state forms, we study spin ordering and its interplay with ...
Black Hole Bound States in AdS(3) x S**2
(Institute of Physics, 2008)
We systematically construct the geometries dual to the 1+1 dimensional (0, 4) conformal field theories that arise in the low-energy description of wrapped M5-branes in S<sup>1</sup> × CY<sub>3</sub> compactifications of ...
Towards a Worldsheet Derivation of the Maldacena Conjecture
(Springer Verlag, 2008)
A U(2,2|4)-invariant A-model constructed from fermionic superfields has recently been proposed as a sigma model for the superstring on \(AdS_5 \times S^5\). After explaining the relation of this A-model with the pure spinor ...
Algebraic Charge Liquids
(Nature Publishing Group, 2008)
High temperature superconductivity emerges in the cuprate compounds upon changing the electron density of an insulator in which the electron spins are antiferromagnetically ordered. A key characteristic of the superconductor ...
Universal Thermal and Electrical Transport Near the Superconductor-Metal Quantum Phase Transition in Nanowires
(American Physical Society, 2008)
We describe the thermal (\(\kappa\)) and electrical (\(\sigma\)) conductivities of quasi-one-dimensional wires, across a quantum phase transition from a superconductor to a metal induced by pair-breaking perturbations. ...
Edge and Impurity Response in Two-Dimensional Quantum Antiferromagnets
(American Physical Society, 2008)
Motivated by recent Monte Carlo simulations of Höglund and Sandvik (arXiv:0808.0408), we study edge response in square lattice quantum antiferromagnets. We use the \(O(3)\) nonlinear σ model to compute the decay asymptotics ...