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Carbon nanotube composites for thermal management

Single-wall carbon nanotubes (SWNTs) were used to augment the thermal transport properties of industrial epoxy. Samples loaded with 1 wt % unpurified SWNT material showed a 70% increase in thermal…
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Engineered two-dimensional Ising interactions in a trapped-ion quantum simulator with hundreds of spins

A spin-dependent optical dipole force can produce an antiferromagnetic interaction, and this demonstration, coupled with the high spin count, excellent quantum control and low technical complexity of the Penning trap, brings within reach the simulation of otherwise computationally intractable problems in quantum magnetism.
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Electrical Transport in Single-Wall Carbon Nanotubes

We review recent progress in the measurement and understanding of the electricalproperties of individual metal and semiconducting single-wall carbon nanotubes. Thefundamental scattering mechanisms…
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Dynamical decoupling sequence construction as a filter-design problem

Over the past decade we have seen an explosion of demonstrations of quantum coherence in atomic, optical and condensed matter systems. These developments have placed a new emphasis on the production…
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Thermal properties of carbon nanotubes and nanotube-based materials

Abstract.The thermal properties of carbon nanotubes are directly related to their unique structure and small size. Because of these properties, nanotubes may prove to be an ideal material for the…
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Optimized dynamical decoupling in a model quantum memory

The extension of a treatment to predict qubit decoherence under realistic conditions is extended, yielding strong agreement between experimental data and theory for arbitrary pulse sequences incorporating nonidealized control pulses, demonstrating the robustness of qubit memory error suppression through dynamical decoupling techniques across a variety of qubits.
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Qiskit Backend Specifications for OpenQASM and OpenPulse Experiments

A specification for a common interface to backends and a standarized data structure (Qobj --- quantum object) for sending experiments to those backends via Qiskit and OpenPulse, a language for specifying pulse level control of a general quantum device independent of the specific hardware implementation are provided.
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Arbitrary quantum control of qubits in the presence of universal noise

We address the problem of deriving analytic expressions for calculating universal decoherence-induced errors in qubits undergoing arbitrary, unitary, time-dependent quantum control protocols. We show…
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Near-ground-state transport of trapped-ion qubits through a multidimensional array

We have demonstrated transport of {sup 9}Be{sup +}ions through a two-dimensional Paul-trap array that incorporates an X junction, while maintaining the ions near the motional ground state of the…
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Engineered 2D Ising interactions on a trapped-ion quantum simulator with hundreds of spins

Joseph W. Britton1, Brian C. Sawyer1, Adam C. Keith2,3, C.-C. Joseph Wang2, James K. Freericks2, Hermann Uys4, Michael J. Biercuk5, John. J. Bollinger1 1NIST Time and Frequency Division, Boulder, CO…
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