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Showing 1 to 12 of 19316 entries
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Global solutions of restricted open-shell Hartree-Fock theory from semidefinite programming with applications to strongly correlated quantum systems.

The Journal of chemical physics

Veeraraghavan S, Mazziotti DA.
PMID: 24697423
J Chem Phys. 2014 Mar 28;140(12):124106. doi: 10.1063/1.4868242.

We present a density matrix approach for computing global solutions of restricted open-shell Hartree-Fock theory, based on semidefinite programming (SDP), that gives upper and lower bounds on the Hartree-Fock energy of quantum systems. While wave function approaches to Hartree-Fock...

Observation and deperturbation of near-dissociation ro-vibrational structure of the Cs2 state 0u(+) (A(1)Σu(+)∼b(3)Π0+u) at the asymptote 6S1/2 + 6P1/2.

The Journal of chemical physics

Liu W, Xu R, Wu J, Yang J, Lukashov SS, Sovkov VB, Dai X, Ma J, Xiao L, Jia S.
PMID: 26429011
J Chem Phys. 2015 Sep 28;143(12):124307. doi: 10.1063/1.4931646.

New ro-vibrational structures of cold Cs2 in the 0u(+) state near the asymptote 6S1/2 + 6P1/2 are resolved. The variation of the rotational constants shows that the related energy spectra are strongly perturbed. An analysis of new data along...

Rotating effects on the Landau quantization for an atom with a magnetic quadrupole moment.

The Journal of chemical physics

Fonseca IC, Bakke K.
PMID: 26747807
J Chem Phys. 2016 Jan 07;144(1):014308. doi: 10.1063/1.4939525.

Based on the single particle approximation [Dmitriev et al., Phys. Rev. C 50, 2358 (1994) and C.-C. Chen, Phys. Rev. A 51, 2611 (1995)], the Landau quantization associated with an atom with a magnetic quadrupole moment is introduced, and...

Ab initio study of reactive collisions between Rb((2)S) or Rb((2)P) and OH(-)((1)Σ(+)).

The Journal of chemical physics

Kas M, Loreau J, Liévin J, Vaeck N.
PMID: 27250305
J Chem Phys. 2016 May 28;144(20):204306. doi: 10.1063/1.4950784.

A theoretical rate constant for the associative detachment reaction Rb((2)S) + OH(-)((1)Σ(+)) → RbOH((1)Σ(+)) + e(-) of 4 × 10(-10) cm(3) s(-1) at 300 K has been calculated. This result agrees with the experimental rate constant of 2-1 (+2)×10(-10)cm(3)s(-1)...

Geometric effects in the electronic transport of deformed nanotubes.

Nanotechnology

Santos F, Fumeron S, Berche B, Moraes F.
PMID: 26900666
Nanotechnology. 2016 Apr 01;27(13):135302. doi: 10.1088/0957-4484/27/13/135302. Epub 2016 Feb 22.

Quasi-two-dimensional systems may exibit curvature, which adds three-dimensional influence to their internal properties. As shown by da Costa (1981 Phys. Rev. A 23 1982-7), charged particles moving on a curved surface experience a curvature-dependent potential which greatly influence their...

Experimental evidence on the mechanism of dissociative electron attachment to formic acid.

Physical review letters

Janečková R, Kubala D, May O, Fedor J, Allan M.
PMID: 24313485
Phys Rev Lett. 2013 Nov 22;111(21):213201. doi: 10.1103/PhysRevLett.111.213201. Epub 2013 Nov 20.

Two mechanisms for dissociative electron attachment in HCOOH, the formation of HCOO(-)+H, were proposed in the literature: (i) via a direct electron attachment into a σ* resonance, augmented by dipole binding of the incident electron [G. A. Gallup et...

Three-pathway electromagnetically induced transparency in coupled-cavity optomechanical system.

Optics express

Lei FC, Gao M, Du C, Jing QL, Long GL.
PMID: 25969245
Opt Express. 2015 May 04;23(9):11508-17. doi: 10.1364/OE.23.011508.

Recently Qu and Agarwal [Phys. Rev. A 22, 031802 (2013)] found a three-pathway electromagnetically induced absorption (TEIA) phenomenon within a mechanically coupled two-cavity system, where there exist a sharp EIA dip in the broad electromagnetically induced transparency peak in...

New observation and combined analysis of the Cs2 0g(-), 0u(+), and 1g states at the asymptotes 6S1/2 + 6P1/2 and 6S1/2 + 6P3/2.

The Journal of chemical physics

Ma J, Liu W, Yang J, Wu J, Sun W, Ivanov VS, Skublov AS, Sovkov VB, Dai X, Jia S.
PMID: 25554154
J Chem Phys. 2014 Dec 28;141(24):244310. doi: 10.1063/1.4904265.

We report on new observations of the photoassociation spectroscopy of ultracold cesium molecules using a highly sensitive detection technique and a combined analysis with all observed electronic states. The technique is achieved by directly modulating the frequency of the...

Fermionic thermocoherent state: Efficiency of electron transport.

Physical review. E

Karmakar A, Gangopadhyay G.
PMID: 26986322
Phys Rev E. 2016 Feb;93(2):022141. doi: 10.1103/PhysRevE.93.022141. Epub 2016 Feb 26.

On the basis of the fermionic coherent state of Cahill and Glauber [Phys. Rev. A 59, 1538 (1999)], we have introduced here the fermionic thermocoherent state in terms of the quasiprobability distribution which shows the appropriate thermal and coherent...

Reply to "Comment on 'Kinetic theory for a mobile impurity in a degenerate Tonks-Girardeau gas' ".

Physical review. E, Statistical, nonlinear, and soft matter physics

Gamayun O, Lychkovskiy O, Cheianov V.
PMID: 26274312
Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Jul;92(1):016102. doi: 10.1103/PhysRevE.92.016102. Epub 2015 Jul 08.

In our recent paper [O. Gamayun, O. Lychkovskiy, and V. Cheianov, Phys. Rev. E 90, 032132 (2014)] we studied the dynamics of a mobile impurity particle weakly interacting with the Tonks-Girardeau gas and pulled by a small external force...

Experimental characterization of singlet scattering channels in long-range Rydberg molecules.

Physical review letters

Saßmannshausen H, Merkt F, Deiglmayr J.
PMID: 25884124
Phys Rev Lett. 2015 Apr 03;114(13):133201. doi: 10.1103/PhysRevLett.114.133201. Epub 2015 Mar 31.

We observe the formation of long-range Cs2 Rydberg molecules consisting of a Rydberg and a ground-state atom by photoassociation spectroscopy in an ultracold Cs gas near 6s1/2(F=3,4)→np3/2 resonances (n=26-34). The spectra reveal two types of molecular states recently predicted...

Bose-stimulated raman adiabatic passage in photoassociation.

Physical review letters

Mackie M, Kowalski R, Javanainen J.
PMID: 11019210
Phys Rev Lett. 2000 Apr 24;84(17):3803-6. doi: 10.1103/PhysRevLett.84.3803.

We analyze coherent two-color photoassociation of a Bose-Einstein condensate, focusing on stimulated Raman adiabatic passage (STIRAP) in free-bound-bound transitions from atoms to molecules. This problem raises an interest because STIRAP has been predicted to be absent in the nondegenerate...

Showing 1 to 12 of 19316 entries