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Nuclear Magnetic Resonance of Photoexcited Triplet States. I. The Measurement of the Rate of Degenerate Singlet-Triplet Exchange for Anthracene in Solution
Nuclear Magnetic Resonance Photoexcited Triplet States Measurement Degenerate Singlet-Triplet Exchange for Anthracene
2016/5/20
The N M R spectroscopy of molecules undergoing rapid exchange between diamagnetic and paramagnetic environments is well understood and is exemplified in studies of fast electron transfer between an or...
Nanostructured Singlet Fission Photovoltaics Subject to Triplet-Charge Annihilation
singlet exciton fission photovoltaic triplet charge pentacene
2014/8/21
Singlet exciton fission is an efficient multiple-exciton generation process that is vulnerable to a characteristic loss process: triplet-charge annihilation. This loss process is characterized in sing...
Solar Energy Gets a Boost UC Riverside chemists’ work on “singlet fission” can increase solar cell efficiency by as much as 30 percent（图）
Solar energy Singlet fission The battery Energy The sun photons The photon
2014/7/18
RIVERSIDE, Calif. — A perspective article published last month by University of California, Riverside chemists in the Journal of Physical Chemistry Letters was selected as an Editors Choice—an honor o...
A transferable model for singlet-fission kinetics
transferable model singlet-fission kinetics
2014/8/21
Exciton fission is a process that occurs in certain organic materials whereby one singlet exciton splits into two independent triplets. In photovoltaic devices these two triplet excitons can each gene...
Strong Electroweak Phase Transitions in the Standard Model with a Singlet
Strong Electroweak Phase Transitions Standard Model Singlet
2011/10/14
It is well known that the electroweak phase transition (EWPhT) in extensions of the Standard Model with one real scalar singlet can be first-order for realistic values of the Higgs mass. We revisit th...
Spin-Singlet Quantum Hall States and Jack Polynomials with a Prescribed Symmetry
Spin-Singlet Quantum Hall States Jack Polynomials Prescribed Symmetry
2011/10/8
Abstract: We show that a large class of bosonic spin-singlet Fractional Quantum Hall model wave-functions and their quasi-hole excitations can be written in terms of Jack polynomials with a prescribed...
Light dark matter in the singlet-extended MSSM
Light dark matter the singlet-extended MSSM
2011/1/13
We discuss the possibility of light dark matter in a general singlet extension of the MSSM. Singlino LSPs with masses of a few GeV can explain the signals reported by the CRESST, CoGeNT and possibly ...
We propose Singlet Stabilized Minimal Gauge Mediation as a simple ISS-based model of Direct Gauge Mediation which avoids both light gauginos and Landau poles. The hidden sector is a massive s-confinin...
Strange Quark Mass and $1^{++}$ Nonet Singlet-Octet Mixing Angle
Strange Quark Mass $1^{++}$ Nonet Singlet-Octet Mixing Angle
2011/1/7
We compute the strange quark mass from the analysis of the $f_1(1420)-f_1(1285)$ mass difference QCD sum rule, where the operator-product-expansion series is up to dimension six and to ${\cal O}(\alph...
Strange Quark Mass and $1^{++}$ Nonet Singlet-Octet Mixing Angle
Strange Quark Mass $1^{++}$ Nonet Singlet-Octet Mixing Angle
2011/1/14
We compute the strange quark mass from the analysis of the f1(1420) − f1(1285) mass difference
QCD sum rule, where the operator-product-expansion series is up to dimension six and to O(α3
s )a...
Triplet-singlet conversion in ultracold Cs$_2$ and production of ground state molecules
Triplet-singlet conversion ground state molecules
2010/11/17
We propose a process to convert ultracold metastable Cs$_2$ molecules in their lowest triplet state into (singlet) ground state molecules in their lowest vibrational levels. Molecules are first pumpe...
Strange Quark Mass and $1^{++}$ Nonet Singlet-Octet Mixing Angle
Strange Quark Mass $1^{++}$ Nonet Singlet-Octet Mixing Angle
2011/1/10
We compute the strange quark mass from the analysis of the f1(1420) − f1(1285) mass difference
QCD sum rule, where the operator-product-expansion series is up to dimension six and to O(α3
s )a...
Strange Quark Mass and $1^{++}$ Nonet Singlet-Octet Mixing Angle
Strange Quark Mass $1^{++}$ Nonet Singlet-Octet Mixing Angle
2011/1/6
We compute the strange quark mass from the analysis of the f1(1420) − f1(1285) mass difference
QCD sum rule, where the operator-product-expansion series is up to dimension six and to O(α3
s )a...
Analyzing Correlations for spin-1/2 particles and Singlet pairs
Analyzing Correlations spin-1/2 particles Singlet pairs
2010/10/29
We review the computation of correlations of successive projections of the spin onto axes for spin-1/2 particles and EPRB pairs (in the Singlet state). We assume forms of Realism (at least as general ...
Optical properties of the nitrogen-vacancy singlet levels in diamond
Optical properties nitrogen-vacancy singlet levels diamond
2010/10/18
We report measurements of the optical properties of the 1042 nm transition of negativelycharged
Nitrogen-Vacancy (NV) centers in type 1b diamond. The results indicate that the upper level of this tra...