11,424 research outputs found
DNALinux Virtual Desktop Edition
The new version of DNALinux (VDE) is presented. DNALinux VDE is a departure from traditional distributions since it uses a virtual machine to bundle together the operating system and bioinformatics applications. The main advantage of this approach is that a virtualized environment doesn't affect a installed system. With a virtual machine a Linux system can be run under a Windows system, provided that the virtual machine player is installed. The included programs are listed and specifications to add more programs are explained. We believe that DNALinux could be used as a standardized virtual machine for learning, using, developing and testing bioinformatics applications
Shortcuts to adiabaticity from linear response theory
A shortcut to adiabaticity is a finite-time process that produces the same
final state as would result from infinitely slow driving. We show that such
shortcuts can be found for weak perturbations from linear response theory. With
the help of phenomenological response functions a simple expression for the
excess work is found -- quantifying the nonequilibrium excitations. For two
specific examples, the quantum parametric oscillator and the spin-1/2 in a
time-dependent magnetic field, we show that finite-time zeros of the excess
work indicate the existence of shortcuts. Finally, we propose a degenerate
family of protocols, which facilitate shortcuts to adiabaticity for specific
and very short driving times.Comment: 9 pages, 8 figure; published versio
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