Browsing by Author "0234263"
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Bound on quantum computation time: Quantum error correction in a critical environment
Baranger, Harold U; Mucciolo, ER; Novais, E (Physical Review A  Atomic, Molecular, and Optical Physics, 20100831)We obtain an upper bound on the time available for quantum computation for a given quantum computer and decohering environment with quantum error correction implemented. First, we derive an explicit quantum evolution operator ... 
Conductance of quantum impurity models from quantum monte carlo
Baranger, Harold U; Chandrasekharan, S; Liu, DE (Physical Review B  Condensed Matter and Materials Physics, 20101028)The conductance of two Anderson impurity models, one with twofold and another with fourfold degeneracy, representing two types of quantum dots, is calculated using a worldline quantum Monte Carlo (QMC) method. Extrapolation ... 
Photon correlations generated by inelastic scattering in a onedimensional waveguide coupled to threelevel systems
Baranger, Harold U; Fang, YLL (Physica E: LowDimensional Systems and Nanostructures, 20160401)© 2015 Elsevier B.V. All rights reserved.We study photon correlations generated by scattering from threelevel systems (3LS) in one dimension. The two systems studied are a 3LS in a semiinfinite waveguide (3LS plus a mirror) ... 
Timedependent transport through molecular junctions.
Baranger, Harold U; Ke, SH; Liu, R; Yang, W (J Chem Phys, 20100621)We investigate transport properties of molecular junctions under two types of biasa short time pulse or an ac biasby combining a solution for Green's functions in the time domain with electronic structure information ... 
Twostage Kondo effect and Kondobox level spectroscopy in a carbon nanotube
Baranger, Harold U; Bomze, Y; Borzenets, I; Finkelstein, Gleb; Makarovski, A; Mebrahtu, H (Physical Review B  Condensed Matter and Materials Physics, 20101018)The concept of the "Kondo box" describes a single spin, antiferromagnetically coupled to a quantum dot with a finite level spacing. Here, a Kondo box is formed in a carbon nanotube interacting with a localized electron. ... 
Waveguide QED: Manybody boundstate effects in coherent and Fockstate scattering from a twolevel system
Baranger, Harold U; Gauthier, Daniel J; Zheng, Huaixio (Physical Review A  Atomic, Molecular, and Optical Physics, 20101214)Strong coupling between a twolevel system (TLS) and bosonic modes produces dramatic quantum optics effects. We consider a onedimensional continuum of bosons coupled to a single localized TLS, a system which may be realized ... 
Waveguide QED: Manybody boundstate effects in coherent and Fockstate scattering from a twolevel system
Baranger, Harold U; Gauthier, Daniel J; Zheng, Huaixio (PHYSICAL REVIEW A, 20101214)