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19932026
most citedQuantum privacy amplification and the security of quantum cryptography over noisy channels

1.3k citations

Showing 2006Show all

9 papers · 1 filter

hep-ph2006★ 6 cited

A novel approach to light-front perturbation theory

T. Heinzl

We suggest a possible algorithm to calculate one-loop n-point functions within a variant of light-front perturbation theory. The key ingredients are the covariant Passarino-Veltman…

hep-lat2006★ 86 cited

Color Screening, Casimir Scaling, and Domain Structure in G(2) and SU(N) Gauge Theories

J. Greensite, K. Langfeld, S. Olejnik +2

We argue that screening of higher-representation color charges by gluons implies a domain structure in the vacuum state of non-abelian gauge theories, with the color magnetic flux…

hep-ph2006★ 6 cited

Initial States: IR and Collinear Divergences

Martin Lavelle, David McMullan

The standard approach to the infra-red problem is to use the Bloch-Nordsieck trick to handle soft divergences and the Lee-Nauenberg (LN) theorem for collinear singularities. We sho…

cond-mat.mtrl-sci2006★ 9 cited

Magnetoresistance in Thin Permalloy Film (10nm-thick and 30-200nm-wide) Nanocontacts Fabricated by e-Beam Lithography

Nicolas Garcia, Cheng Hao, Lu Yonghua +7

In this paper we show spin dependent transport experiments in nanoconstrictions ranging from 30 to 200nm. These nanoconstrictions were fabricated combining electron beam lithograph…

hep-lat2006★ 31 cited

Phase Structure of Z(3)-Polyakov-Loop Models

Christian Wozar, Tobias Kaestner, Andreas Wipf +2

We study effective lattice actions describing the Polyakov loop dynamics originating from finite-temperature Yang-Mills theory. Starting with a strong-coupling expansion the effect…

hep-th2006★ 30 cited

Large orders in strong-field QED

Thomas Heinzl, Oliver Schroeder

We address the issue of large-order expansions in strong-field QED. Our approach is based on the one-loop effective action encoded in the associated photon polarisation tensor. We…

cond-mat.mtrl-sci2006★ 103 cited

Ferromagnetic Wires Composite Media with Tunable Scattering Spectra at Microwaves

D. P. Makhnovskiy, L. V. Panina, C. Garcia +2

We demonstrate composite media with ferromagnetic wires that exhibit a frequency region at the microwave regime with scattering spectra strongly dependent on an external magnetic f…

hep-th2006★ 4 cited

Quantum stabilization of Z-strings in the electroweak model

Oliver Schroeder

We study the quantum energy of the Z-string in 2+1 dimensions using the phase shift formalism. Our main interest is the question of stability of a Z-string carrying a finite fermio…

hep-ph2006★ 297 cited

On the Observation of Vacuum Birefringence

T. Heinzl, B. Liesfeld, K. -U. Amthor +3

We suggest an experiment to observe vacuum birefringence induced by intense laser fields. A high-intensity laser pulse is focused to ultra-relativistic intensity and polarizes the…