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Page 1
Quantized nonlinear Thouless pumping.
Jürgensen M, Mukherjee S, Rechtsman MC. Jürgensen M, et al. Nature. 2021 Aug;596(7870):63-67. doi: 10.1038/s41586-021-03688-9. Epub 2021 Aug 4. Nature. 2021. PMID: 34349291
A Thouless pump(23) is a one-dimensional model that captures the topological quantization of transport in the quantum Hall effect using the notion of dimensional reduction: an adiabatically, time-varying potential mathematically maps onto a momentum coordinate in a concept …
A Thouless pump(23) is a one-dimensional model that captures the topological quantization of transport in the quantum Hall effect using the …
Invariance principles in the theory and computation of transport coefficients.
Grasselli F, Baroni S. Grasselli F, et al. Eur Phys J B. 2021;94(8):160. doi: 10.1140/epjb/s10051-021-00152-5. Epub 2021 Aug 3. Eur Phys J B. 2021. PMID: 34776779 Free PMC article.
The first such principle, gauge invariance, allows one to define a quantum adiabatic energy current from density-functional theory, from which the heat conductivity can be uniquely defined and computed using equilibrium ab initio molecular dynamics. ...The second …
The first such principle, gauge invariance, allows one to define a quantum adiabatic energy current from density-functional th …
Strong static and dynamic Jahn-Teller and pseudo-Jahn-Teller effects in niobium tetrafluoride.
Vasilyev OA, Nandipati KR, Navarkin IS, Solomonik VG, Domcke W. Vasilyev OA, et al. J Chem Phys. 2021 Mar 28;154(12):124305. doi: 10.1063/5.0045905. J Chem Phys. 2021. PMID: 33810698
The complex topography of the full-dimensional multi-sheeted adiabatic JT/PJT surfaces is analyzed computationally at the complete-active-space self-consistent-field (CASSCF) and multireference second-order perturbation levels of electronic structure theory, providi …
The complex topography of the full-dimensional multi-sheeted adiabatic JT/PJT surfaces is analyzed computationally at the complete-ac …
Maximum-J capability in a quasiaxisymmetric stellarator.
Yokoyama M, Itoh K, Okamura S, Matsuoka K, Itoh SI. Yokoyama M, et al. Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Jul;64(1 Pt 2):015401. doi: 10.1103/PhysRevE.64.015401. Epub 2001 Jun 6. Phys Rev E Stat Nonlin Soft Matter Phys. 2001. PMID: 11461322
Maximum-J (J is the second adiabatic invariant) capability, i.e., the radial derivative of J has the same sign as that of pressure, is investigated in a quasiaxisymmetric (QA) stellarator to investigate improved confinement. ...
Maximum-J (J is the second adiabatic invariant) capability, i.e., the radial derivative of J has the same sign as that …
On a modified electrodynamics.
Reiss HR. Reiss HR. J Mod Opt. 2012 Sep;59(15-16):1371-1383. doi: 10.1080/09500340.2012.714804. Epub 2012 Aug 24. J Mod Opt. 2012. PMID: 23105173 Free PMC article.
The problem arises from the information lost by employing an adiabatic cutoff of the field. This is not necessary. Its replacement by a requirement that the total action should not change with a gauge transformation amounts to a supplementary condition for gauge invaria …
The problem arises from the information lost by employing an adiabatic cutoff of the field. This is not necessary. Its replacement by …
Relaxation dispersion in MRI induced by fictitious magnetic fields.
Liimatainen T, Mangia S, Ling W, Ellermann J, Sorce DJ, Garwood M, Michaeli S. Liimatainen T, et al. J Magn Reson. 2011 Apr;209(2):269-76. doi: 10.1016/j.jmr.2011.01.022. Epub 2011 Feb 1. J Magn Reson. 2011. PMID: 21334231 Free PMC article.
RAFF generates a fictitious field (E) by applying frequency-swept pulses with sine and cosine amplitude and frequency modulation operating in a sub-adiabatic regime. In the present work, MRI contrast is created by varying the orientation of E, i.e. the angle epsilon betwee …
RAFF generates a fictitious field (E) by applying frequency-swept pulses with sine and cosine amplitude and frequency modulation operating i …
Efficient geometric integrators for nonadiabatic quantum dynamics. I. The adiabatic representation.
Choi S, Vaníček J. Choi S, et al. J Chem Phys. 2019 May 28;150(20):204112. doi: 10.1063/1.5092611. J Chem Phys. 2019. PMID: 31153205
Geometric integrators of the Schrodinger equation conserve exactly many invariants of the exact solution. Among these integrators, the split-operator algorithm is explicit and easy to implement but, unfortunately, is restricted to systems whose Hamiltonian is separable int …
Geometric integrators of the Schrodinger equation conserve exactly many invariants of the exact solution. Among these integrators, th …
Topological properties of adiabatically varied Floquet systems.
Dana I. Dana I. Phys Rev E. 2017 Aug;96(2-1):022216. doi: 10.1103/PhysRevE.96.022216. Epub 2017 Aug 24. Phys Rev E. 2017. PMID: 28950502
The latter determines the change in the mean angular momentum of a state in the band when the external parameter is adiabatically varied by a natural period. We show here, under conditions much more general than in previous works, that the ensemble of DKRs for all values o …
The latter determines the change in the mean angular momentum of a state in the band when the external parameter is adiabatically var …
Potential energy surface for high-energy N + N2 collisions.
Varga Z, Truhlar DG. Varga Z, et al. Phys Chem Chem Phys. 2021 Dec 1;23(46):26273-26284. doi: 10.1039/d1cp04373k. Phys Chem Chem Phys. 2021. PMID: 34787127
Here we present an analytic ground-state. ((4)A'') potential energy surface for N(3) that governs electronically adiabatic collisions of N(2)((1)sigma+g) with N((4)S). The fitted surface consists of a pairwise potential based on an accurate diatomic potential energy curve …
Here we present an analytic ground-state. ((4)A'') potential energy surface for N(3) that governs electronically adiabatic collisions …
Chaos of energetic positron orbits in a dipole magnetic field and its potential application to a new injection scheme.
Saitoh H, Yoshida Z, Yano Y, Nishiura M, Kawazura Y, Horn-Stanja J, Pedersen TS. Saitoh H, et al. Phys Rev E. 2016 Oct;94(4-1):043203. doi: 10.1103/PhysRevE.94.043203. Epub 2016 Oct 19. Phys Rev E. 2016. PMID: 27841504
We study the behavior of high-energy positrons emitted from a radioactive source in a magnetospheric dipole field configuration. Because the conservation of the first and second adiabatic invariants is easily destroyed in a strongly inhomogeneous dipole field …
We study the behavior of high-energy positrons emitted from a radioactive source in a magnetospheric dipole field configuration. Because the …
21 results