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Chem. 27, 541 (1965). 14. J. M. Haschke, T. H. Allen, J. L. Stakebake, J. Alloys Compd. 243, 23 (1996). 15. J. M. Haschke and T. E. Ricketts, J. Alloys Compd. 252, 148 (1997). 16. J. M. Haschke, A. E. Hodges, G. E. Bixby, R. L. Lucas, Rep. RFP–3416 (Rocky Flats Plant, Golden, CO, 1983). 17. J. M. Haschke, in Transuranium Elements: A Half Century, L. R.… (More)

Strong coupling between a two-level system (TLS) and bosonic modes produces dramatic quantum optics effects. We consider a one-dimensional continuum of bosons coupled to a single localized TLS, a system which may be realized in a variety of plasmonic, photonic, or electronic contexts. We present the exact many-body scattering eigenstate obtained by imposing… (More)

- E. Novais, Harold U. Baranger
- Physical review letters
- 2006

We study the decoherence of a quantum computer in an environment which is inherently correlated in time and space. We first derive the nonunitary time evolution of the computer and environment in the presence of a stabilizer error correction code, providing a general way to quantify decoherence for a quantum computer. The general theory is then applied to… (More)

A new approach to the modeling of wireless propagation in buildings is introduced. We treat the scattering by walls and local clutter probabilistically through either a relaxationtime approximation in a Boltzmann equation or by using a diffusion equation. The result is a range of models in which one can vary the tradeoff between the complexity of the… (More)

- Huaixiu Zheng, Harold U. Baranger
- Physical review letters
- 2013

We study photon-photon correlations and entanglement generation in a one-dimensional waveguide coupled to two qubits with an arbitrary spatial separation. To treat the combination of nonlinear elements and 1D continuum, we develop a novel Green function method. The vacuum-mediated qubit-qubit interactions cause quantum beats to appear in the second-order… (More)

We propose an experimental setup for detecting a Majorana zero mode consisting of a spinless quantum dot coupled to the end of a p-wave superconducting nanowire. The Majorana bound state at the end of the wire strongly influences the conductance through the quantum dot: Driving the wire through the topological phase transition causes a sharp jump in the… (More)

- Rui Liu, San-Huang Ke, Weitao Yang, Harold U. Baranger
- The Journal of chemical physics
- 2006

We study the rectification of current through a single molecule with an intrinsic spatial asymmetry. The molecule contains a cobaltocene moiety in order to take advantage of its relatively localized and high-energy d states. A rectifier with large voltage range, high current, and low threshold can be realized. The evolution of molecular orbitals under both… (More)

- San-Huang Ke, Harold U. Baranger, Weitao Yang
- The Journal of chemical physics
- 2007

The effect of the exchange-correlation potential in ab initio electron transport calculations is investigated by constructing optimized effective potentials using different energy functionals or the electron density from second-order perturbation theory. The authors calculate electron transmission through two atomic chain systems, one with charge transfer… (More)

We demonstrate the existence of an interference contribution to the average magnetoconductance, G(B), of ballistic cavities and use it to test the semiclassical theory of quantum billiards. G(B) is qualitatively different for chaotic and regular cavities, an effect explained semiclassically by the differing classical distribution of areas. The magnitude of… (More)

- Jürgen Wurm, Adam Rycerz, Inanç Adagideli, Michael Wimmer, Klaus Richter, Harold U. Baranger
- Physical review letters
- 2009

We study the symmetry classes of graphene quantum dots, both open and closed, through the conductance and energy level statistics. For abrupt termination of the lattice, these properties are well described by the standard orthogonal and unitary ensembles. However, for smooth mass confinement, special time-reversal symmetries associated with the sublattice… (More)