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- UNSW SydneyAU10 papers
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8 papers · 1 filter
Chebyshev approach to quantum systems coupled to a bath
Andreas Alvermann, Holger Fehske
We propose a new concept for the dynamics of a quantum bath, the Chebyshev space, and a new method based on this concept, the Chebyshev space method. The Chebyshev space is an abst…
Lattice exciton-polaron problem by quantum Monte Carlo simulations
Martin Hohenadler, Peter B. Littlewood, Holger Fehske
Exciton-polaron formation in one-dimensional lattice models with short or long-range carrier-phonon interaction is studied by quantum Monte Carlo simulations. Depending on the rela…
Evidence for a breakdown of the Isobaric Multiplet Mass Equation: A study of the A=35, T=3/2 isospin quartet
C. Yazidjian, G. Audi, D. Beck +9
Mass measurements on radionuclides along the potassium isotope chain have been performed with the ISOLTRAP Penning trap mass spectrometer. For 35K T1/2=178ms) to 46K (T1/2=105s) re…
Molecular Dynamics Study of a Thermal Expansion Coefficient: Ti Bulk with an Elastic Minimum Image Method
Yakup Hundur, Rainer Hippler, Ziya B. Guvenc
Linear thermal expansion coefficient (TEC) and specific heat of Ti bulk is investigated by means of molecular dynamics simulation. Elastic Minimum Image Convention of periodic boun…
Optical conductivity of polaronic charge carriers
Jan Loos, Martin Hohenadler, Andreas Alvermann +1
The optical conductivity of charge carriers coupled to quantum phonons is studied in the framework of the one-dimensional spinless Holstein model. For one electron, variational dia…
The Ramsey method in high-precision mass spectrometry with Penning traps: Experimental results
S. George, K. Blaum, F. Herfurth +6
The highest precision in direct mass measurements is obtained with Penning trap mass spectrometry. Most experiments use the interconversion of the magnetron and cyclotron motional…