18,408 research outputs found
A Possible Hermitian Neutrino Mixing Ansatz
Using a recent global analysis result after the precise measurement of
, a possible Herimtian neutrino mixing ansatz is discussed, the
mixing matrix is symmetric and also symmetric with respect with the second
diagonal line in the leading order. This leading order ansatz predicts
. Next, consider the hierarchy structure of the lepton
mass matrix as the origin of perturbation of the mixing matrix, we find that
this ansatz with perturbation can fit current data very well.Comment: 13 pages, 4 figure
Holographic R\'enyi Entropy and Generalized Entropy method
In this paper we use the method of generalized gravitational entropy in
\cite{Lewkowycz:2013nqa} to construct the dual bulk geometry for a spherical
entangling surface, and calculate the R\'enyi entropy with the dual bulk
gravity theory being either Einstein gravity or Lovelock gravity, this approach
is closely related to that in \cite{Casini:2011kv}. For a general entangling
surface we derive the area law of entanglement entropy. The area law is closely
related with the local property of the entangling surface.Comment: 17+6 page
Quantum measurement in two-dimensional conformal field theories: Application to quantum energy teleportation
We construct a set of quasi-local measurement operators in 2D CFT, and then
use them to proceed the quantum energy teleportation (QET) protocol and show it
is viable. These measurement operators are constructed out of the projectors
constructed from shadow operators, but further acting on the product of two
spatially separated primary fields. They are equivalently the OPE blocks in the
large central charge limit up to some UV-cutoff dependent normalization but the
associated probabilities of outcomes are UV-cutoff independent. We then adopt
these quantum measurement operators to show that the QET protocol is viable in
general. We also check the CHSH inequality a la OPE blocks.Comment: match the version published on PLB, the main conclusion didn't
change, some techincal details can be found in the previous versio
Synthesis and Crystal Structure of the Bioinorganic Complex [Sb(Hedta)]·2H 2
The antimony(III) complex [Sb(Hedta)]·2H2O was synthesized with ethylenediaminetetraacetic acid (H4edta) and antimonous oxide as main raw materials in aqueous solution. The composition and structure of the complex were characterized by elemental analysis, infrared spectra, single crystal X-ray diffraction, X-ray powder diffraction, thermogravimetry, and differential scanning calorimetry. The crystal structure of the antimony(III) complex belongs to orthorhombic system, space group Pna2(1), with cell parameters of a=18.4823(18) Å, b=10.9408(12) Å, c=7.3671(5) Å, V=1489.7(2) Å3, Z=4, and Dc=1.993 g cm−3. The Sb(III) ion is five-coordinated by two amido N atoms and three carboxyl O atoms from a single Hedta3− ligand, forming a distorted trigonal bipyramid geometry. The thermal decomposition processes of the complex include dehydration, oxidation, and pyrolysis of the ligand, and the last residue is Sb2O3 at the temperature of 570°C
Synthesis, Crystal Structure, and Thermal Decomposition of the Cobalt(II) Complex with 2-Picolinic Acid
The cobalt(II) complex of 2-picolinic acid (Hpic), namely, [Co(pic)2(H2O)2]·2H2O, was synthesized with the reaction of cobalt acetate and 2-picolinic acid as the reactants by solid-solid reaction at room temperature. The composition and structure of the complex were characterized by elemental analysis, infrared spectroscopy, single crystal X-ray diffraction, and thermogravimetry-differential scanning calorimetry (TG-DSC). The crystal structure of the complex belongs to monoclinic system and space group P2(1)/n, with cell parameters of a=9.8468(7) Å, b=5.2013(4) Å, c=14.6041(15) Å, β=111.745(6)°, V=747.96(11) Å3, Z=2, Dc=1.666 g cm−3, R1=0.0297, and wR2=0.0831. In the title complex, the Co(II) ion is six-coordinated by two pyridine N atoms and two carboxyl O atoms from two 2-picolinic acid anions, and two O atoms from two H2O molecules, and forming a slightly distorted octahedral geometry. The thermal decomposition processes of the complex under nitrogen include dehydration and pyrolysis of the ligand, and the final residue is cobalt oxalate at about 450°C
- …