Results 31 to 40 of about 5,216,810 (303)

Elementary excitation in the Haldane state

open access: yesPhysical Review Letters, 1990
A localized two-spin bound state with the resultant spin S=1 is proposed as an elementary excitation of the Haldane state in Ni(${\mathrm{C}}_{2}$${\mathrm{H}}_{8}$${\mathrm{N}}_{2}$)${\mathrm{NO}}_{2}$(${\mathrm{ClO}}_{4}$) (NENP) and Ni(${\mathrm{C}}_{3}$${\mathrm{H}}_{10}$${\mathrm{N}}_{2}$)${\mathrm{NO}}_{2}$(${\mathrm{ClO}}_{4}$) (NINO). The bound
Kindo, Koichi, Date, Muneyuki
openaire   +2 more sources

Spectroscopy at the two-proton drip line: Excited states in 158W

open access: yesPhysics Letters B, 2017
Excited states have been identified in the heaviest known even-Z N=84 isotone 158W, which lies in a region of one-proton emitters and the two-proton drip line.
D.T. Joss   +28 more
doaj   +1 more source

Variational Quantum Computation of Excited States [PDF]

open access: yesQuantum, 2019
The calculation of excited state energies of electronic structure Hamiltonians has many important applications, such as the calculation of optical spectra and reaction rates.
Oscar Higgott   +2 more
doaj   +1 more source

Resonances in Systems Involving Positrons

open access: yesAtoms, 2020
When an incident particle on a target gets attached to the target, the cross-section at that energy could be much larger compared to those at other energies. This is a short-lived state and decays by emitting an electron.
Anand K. Bhatia
doaj   +1 more source

Primordial gravitational waves from excited states

open access: yesJournal of High Energy Physics, 2022
We show that a scalar excited state with large occupation numbers during inflation leads to an enhancement of tensor modes and a characteristic pattern of order-one oscillations in the associated stochastic gravitational wave background (SGWB) sourced ...
Jacopo Fumagalli   +5 more
doaj   +1 more source

Electronically Excited States of Free Radicals

open access: yesPhyschem, 2023
Formation of the excited doublet (D) and quartet (Q) states of free radicals under their photoexcitation is discussed. The relative positions of the D and Q states are compared to the positions of the photoexcited states of organic molecules (Jablonsky ...
Igor V. Khudyakov
doaj   +1 more source

Excited States of Maximal Warm Holes

open access: yesUniverse, 2023
Recently, the Einstein–Maxwell–scalar model with a non-minimal coupling between the scalar and Maxwell fields was explored. As a result, a new class of black hole solutions with scalar hair was discovered.
Yuan Yue, Yong-Qiang Wang
doaj   +1 more source

Exploring excited states of the nucleon in 2+1 flavor lattice QCD [PDF]

open access: yes, 2012
Our recent first-principles lattice-QCD exploration of the ground and first eleven excited states of the nucleon in the positive parity channel is presented.
Mahbub, M.   +9 more
core   +1 more source

Radial excitations of the decuplet baryons

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
The ground and first excited states of the decuplet baryons are studied using the two-point QCD sum rule approach. The mass and residue of these states are computed and compared with the existing experimental data and other theoretical predictions.
T. M. Aliev, K. Azizi, H. Sundu
doaj   +1 more source

Subsystem distances between quasiparticle excited states

open access: yesJournal of High Energy Physics, 2022
We investigate the subsystem Schatten distance, trace distance and fidelity between the quasiparticle excited states of the free and the nearest-neighbor coupled fermionic and bosonic chains and the ferromagnetic phase of the spin-1/2 XXX chain.
Jiaju Zhang, M. A. Rajabpour
doaj   +1 more source

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