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Coupling approach for the realization of a PT -symmetric potential for a Bose-Einstein condensate in a double well
We show how non-Hermitian potentials used to describe probability gain and loss in effective theories of open quantum systems can be achieved by a coupling of the system to an environment. We do thisExpand
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Exceptional points in the spectra of atoms in external fields
Institut fu¨r Theoretische Physik 1, Universit¨at Stuttgart, 70550 Stuttgart, Germany(Dated: February 27, 2009)We investigate exceptional points, which are branch point singularities of two resonanceExpand
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Impact of the valence band structure of Cu$_{2}$O on excitonic spectra
We present a method to calculate the exciton spectra of all direct semiconductors with a complex valence band structure. The Schr\"odinger equation is solved using a complete basis set with CoulombExpand
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BHIVA guidelines on HIV and chronic hepatitis: coinfection with HIV and hepatitis C virus infection (2005)
(1) All HIV/HCV-coinfected patients should have a thorough assessment of disease status and risk of progression that includes a detailed clinical history, examination and blood tests including LFT,Expand
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Dipolar Bose-Einstein condensates in a PT-symmetric double-well potential
We investigate dipolar Bose-Einstein condensates in a complex external double-well potential that features a combined parity and time-reversal symmetry. On the basis of the Gross-Pitaevskii equationExpand
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P 227 Measurement of corneal and crystalline lens misalignment relative to the visual axis
%rpare To measure the misalignment between the comeal and crystalline lens axes relative to the visual axis. To evaluate experimental errors involved in the Purkinje I and IV Reflection PatternExpand
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Obtaining time-dependent multi-dimensional dividing surfaces using Lagrangian descriptors
Abstract Dynamics between reactants and products are often mediated by a rate-determining barrier and an associated dividing surface leading to the transition state theory rate. This framework isExpand
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Topological invariants in dissipative extensions of the Su-Schrieffer-Heeger model
We investigate dissipative extensions of the Su-Schrieffer-Heeger model with regard to different approaches of modeling dissipation. In doing so, we use two distinct frameworks to describe the gainExpand
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Bose-Einstein condensates with balanced gain and loss beyond mean-field theory
Most of the work done in the field of Bose-Einstein condensates with balanced gain and loss has been performed in the mean-field approximation using the PT-symmetric Gross-Pitaevskii equation. InExpand
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Realizing PT-symmetric BEC subsystems in closed hermitian systems
In open double-well Bose-Einstein condensate systems which balance in- and outfluxes of atoms and which are effectively described by a non-hermitian PT-symmetric Hamiltonian PT-symmetric states haveExpand
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