Vibrational properties of ultralong Rydberg Cs $_2$ molecules are investigated on corresponding potential curves obtained by perturbation theory. The Rydberg Cs $_2$ molecules are associated by a Rydberg Cs( $nS/nP$ ) atom $(n=30-70)$ and a ground state Cs( $6s$ ) atom. The starting point for the perturbation treatment of corresponding Rydberg molecular potential curves is to generate accurate atomic Rydberg states from realistic {\it ab initio} effective core potential. The calculated results have similar characteristics with available experimental and theoretical investigations on Rydberg Rb $_2$ molecules. And this is the first time that Rydberg molecules are studied at the {\it ab initio} level.Vibrational properties of ultralong Rydberg Cs$_2$ molecules are investigated on corresponding potential curves obtained by perturbation theory. The Rydberg Cs$_2$ molecules are associated by a Rydberg Cs($nS/nP$) atom $(n=30-70)$ and a ground state Cs($6s$) atom. The starting point for the perturbation treatment of corresponding Rydberg molecular potential curves is to generate accurate atomic Rydberg states from realistic {\it ab initio} effective core potential. The calculated results have similar characteristics with available experimental and theoretical investigations on Rydberg Rb$_2$ molecules. And this is the first time that Rydberg molecules are studied at the {\it ab initio} level.

arXiv:1210.6158Journal of the Physical Society of JapanJul 10, 20150 citations

青方偏移した超長範囲Cs 2 Rydberg分子の観測

J Tallant, Seth T. Rittenhouse, D Booth +2 more

Physical Review LettersJan 1, 20129 citations

Electronic Raman Processes in Rydberg Matter of Cs: Circular Rydberg States in Cs and Cs+

Robert Svensson, Leif Holmlid

We report the first Raman study of the Rydberg matter form of Cs, using a ns pulsed dye laser. Electronic Raman anti-Stokes and mixed Stokes processes are detected in the range 290--920 nm after nonresonant excitation at 564 nm. No fluorescence is observed. The anti-Stokes transitions are from a high circular Rydberg state to a low circular state $8J$ in ${\mathrm{Cs}}^{+}$ , close to $4F$ in Cs. The Stokes transitions are mixed in one more step with the laser radiation, and go from low circular states to Rydberg matter states. The transitions observed agree well with transitions in ${\mathrm{Cs}}^{+}$ .We report the first Raman study of the Rydberg matter form of Cs, using a ns pulsed dye laser. Electronic Raman anti-Stokes and mixed Stokes processes are detected in the range 290--920 nm after nonresonant excitation at 564 nm. No fluorescence is observed. The anti-Stokes transitions are from a high circular Rydberg state to a low circular state $8J$ in ${\mathrm{Cs}}^{+}$, close to $4F$ in Cs. The Stokes transitions are mixed in one more step with the laser radiation, and go from low circular states to Rydberg matter states. The transitions observed agree well with transitions in ${\mathrm{Cs}}^{+}$.

Physical Review LettersAug 30, 199941 citations

Rydberg原子‐イオン衝突電荷交換に対する古典的オーバーバリア模型

Valentin N. Ostrovsky

Jan 1, 19950 citations

Proposal for making a beam of antihydrogen by two charge exchange events

F. Robicheaux

We have performed calculations of two successive charge transfers in a geometry that could generate a beam of antihydrogen atoms () or reliably produce cold without having to reach extremely cold plasma temperatures. The basic idea is similar to that proposed by Hessels et al (1998 Phys. Rev. A 57 1668) except that the order of the charge transfers is reversed. A beam of highly-excited (Rydberg) Cs atoms passes through an antiproton () plasma where a charge transfer can take place; the result is an exotic Rydberg atom (Cs+ ion and a bound ) which has approximately the original velocity of the Cs atom since the Cs+ mass is much greater than that of the . This exotic Rydberg atom travels into a positron plasma where a second charge exchange gives antihydrogen (). The velocity distribution of the resulting is directly related to the original velocity of the Rydberg Cs atom. The binding energy of the is roughly that of the original Cs Rydberg atom; thus, the starting state of the can be controlled by choosing the initial state of the Cs atom. Because the Cs+ binding energy can be controlled in the charge transfer, this first step, by itself, could be of interest to the exotic atom community.We have performed calculations of two successive charge transfers in a geometry that could generate a beam of antihydrogen atoms () or reliably produce cold without having to reach extremely cold plasma temperatures. The basic idea is similar to that proposed by Hessels et al (1998 Phys. Rev. A 57 1668) except that the order of the charge transfers is reversed. A beam of highly-excited (Rydberg) Cs atoms passes through an antiproton () plasma where a charge transfer can take place; the result is an exotic Rydberg atom (Cs+ ion and a bound ) which has approximately the original velocity of the Cs atom since the Cs+ mass is much greater than that of the . This exotic Rydberg atom travels into a positron plasma where a second charge exchange gives antihydrogen (). The velocity distribution of the resulting is directly related to the original velocity of the Rydberg Cs atom. The binding energy of the is roughly that of the original Cs Rydberg atom; thus, the starting state of the can be controlled by choosing the initial state of the Cs atom. Because the Cs+ binding energy can be controlled in the charge transfer, this first step, by itself, could be of interest to the exotic atom community.

Journal of Physics B Atomic Molecular and Optical PhysicsDec 8, 20092 citations

外部電場のnS Rydberg原子の状態-混合

Yuechun Jiao, Limei Wang, Hao Zhang +3 more

Journal of the Physical Society of JapanJan 1, 20151 citation

Vibrational properties of ultralong Rydberg Cs

_2

molecules are investigated on corresponding potential curves obtained by perturbation theory. The Rydberg Cs

_2

molecules are associated by a Rydberg Cs(

nS/nP

) atom

(n=30-70)

and a ground state Cs(

6s

) atom. The starting point for the perturbation treatment of corresponding Rydberg molecular potential curves is to generate accurate atomic Rydberg states from realistic {\it ab initio} effective core potential. The calculated results have similar characteristics with available experimental and theoretical investigations on Rydberg Rb

_2

molecules. And this is the first time that Rydberg molecules are studied at the {\it ab initio} level.

8J

{\mathrm{Cs}}^{+}

, close to

4F

in Cs. The Stokes transitions are mixed in one more step with the laser radiation, and go from low circular states to Rydberg matter states. The transitions observed agree well with transitions in

{\mathrm{Cs}}^{+}