NLO QCD corrections to η _c +h _c (1 P )/ψ _1,2 (1 D ) production at B-factories

Abstract

NLO QCD corrections to η c +h c (1P)/ψ 1,2 (1D) production at B-factories * CHEN Long-Bin( ) 1,2;1) JIANG Jun( ) 1;2) QIAO Cong-Feng( ) 1,2;3)

Dopant incorporation site in sodium cobaltate's host lattice: a critical factor for thermoelectric performance

“…Finally, we used direct inversion in the iterative subspace algorithm [20] to optimize the ionic position where we set the convergence thresholds for energy, Cartesian components of internal forces and displacement at 10 −5 eV/atom, 0.01 eV/ A, and 0.005 A respectively. The lattice parameters of the primitive NaCoO 2 unit cell were found to be 2.87 A for a and 10.90 A for c which are in reasonable agreement with experimental lattice parameters [21] differing by 1.04% and 0.91% for a and c respectively. Then a 4a × 2a × 1c supercell of Na 16 Co 16 O 32 constructed to create the Na deficient systems.…”

Enhanced Seebeck coefficient by a filling-induced Lifshitz transition in KxRhO2

“…1(c). In the isostructural Na x CoO 2 , it is well known that the low Na-content sample is easily hydrated and a heating process removes H 2 O molecules from the hydrated sample [45]. Thus the present result indicates that a hydrated phase is also formed in K x RhO 2 after de-intercalation but can be recovered to the non-hydrate phase by the successive annealing.…”

Black hole evaporation and semiclassical thin shell collapse

“…Quantum effects, such as the emission of Hawking radiation, make the underlying physics more involved. Three features of Hawking radiation are relevant: it is triggered by the collapse and does not require horizons for its emission [8][9][10]; its energy-momentum tensor T µν := T µν violates the null energy condition (NEC), i.e., there is a null vector k µ such that T µν k µ k ν < 0 [2,7,11]; and it results in evaporation (complete or to a Planck-scale remnant) of black holes in a finite time t E of a distant observer [11,12].…”