Results 1 to 10 of about 255,693 (225)

Two-photon pathway to ultracold ground state molecules of 23Na40K

open access: yesNew Journal of Physics, 2015
We report on high-resolution spectroscopy of ultracold fermionic ^23 Na ^40 K Feshbach molecules, and identify a two-photon pathway to the rovibrational singlet ground state via a resonantly mixed B ^1 Π ∼ c ^3 Σ ^+ intermediate state.
Jee Woo Park   +2 more
doaj   +2 more sources

Zhang-Rice singlets state formed by two-step oxidation for triggering water oxidation under operando conditions

open access: goldNature Communications, 2023
The Zhang-Rice singlet is known for the superconductivity of high-temperature superconductors cuprate but is rarely studied for an electrochemical catalyst.
Chun-Kuo Peng   +10 more
doaj   +2 more sources

Analysis of the DD¯⁎K System with QCD Sum Rules

open access: yesAdvances in High Energy Physics, 2019
In this article, we construct the color singlet-singlet-singlet interpolating current with IJP=3/21- to study the DD¯⁎K system through QCD sum rules approach. In calculations, we consider the contributions of the vacuum condensates up to dimension-16 and
Zun-Yan Di, Zhi-Gang Wang
doaj   +2 more sources

Quantitative theory of magnetic properties of elemental praseodymium [PDF]

open access: yesnpj Computational Materials
Elemental Pr metal is unique among rare-earth elements in featuring a localized partially filled 4f shell without ordered magnetism. Experimental evidence attributes this absence of magnetism to a singlet crystal-field (CF) ground state of the Pr 4f 2 ...
Leonid V. Pourovskii   +3 more
doaj   +2 more sources

High-spin state dynamics and quintet-mediated emission in intramolecular singlet fission. [PDF]

open access: greenNat Commun
Grüne J   +13 more
europepmc   +3 more sources

Singlet/Triplet State Anti/Aromaticity of CyclopentadienylCation: Sensitivity to Substituent Effect

open access: yesChemistry, 2021
It is well known that singlet state aromaticity is quite insensitive to substituent effects, in the case of monosubstitution. In this work, we use density functional theory (DFT) calculations to examine the sensitivity of triplet state aromaticity to ...
Milovan Stojanović   +2 more
doaj   +1 more source

Composite pulses for high fidelity population transfer in three-level systems

open access: yesNew Journal of Physics, 2022
In this work, we propose a composite pulses (CPs) scheme by modulating phases to achieve high fidelity population transfer in three-level systems. To circumvent the obstacle that not enough variables are exploited to eliminate the systematic errors in ...
Zhi-Cheng Shi   +7 more
doaj   +1 more source

Preparing Nuclear Spin Singlet State in a Three-spin System and Its Application in 2D Spectrum

open access: yesChinese Journal of Magnetic Resonance, 2022
Nuclear spin singlet state is a special spin state, whose main characteristic is that its lift-time can be much longer than the corresponding longitudinal/transverse relaxation time.
Kai-rui HU   +5 more
doaj   +1 more source

Preparation and Lifetime Studies of the Singlet State of Five Spins in Hexene Molecules Used to Guide the Preservation of the Parahydrogen-induced Nuclear Polarization State

open access: yesChinese Journal of Magnetic Resonance, 2023
Parahydrogen-induced polarization (PHIP) technique can greatly enhance the sensitivity of nuclear magnetic resonance (NMR) signals, and has been applied in the fields of magnetic resonance imaging, in situ chemical reaction monitoring, etc.
CI Jie   +4 more
doaj   +1 more source

Isospin eigenstates of the color singlet-singlet-type pentaquark states

open access: yesScience China Physics, Mechanics & Astronomy, 2022
In this article, we construct the color singlet-singlet type five-quark currents with the isospins $(I,I_3)=(\frac{1}{2},\frac{1}{2})$ and $(\frac{3}{2},\frac{1}{2})$ unambiguously to explore the $\bar{D}Σ_c$, $\bar{D}Σ_c^*$, $\bar{D}^*Σ_c$ and $\bar{D}^*Σ_c^*$ pentaquark states via the QCD sum rules for the first time, where the $\bar{D}$, $Σ_c ...
Wang, Xiu-Wu   +3 more
openaire   +2 more sources

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