Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physical Review A

Velocity selection for ultracold three-level atoms using two micromaser cavities

Zhi-Ming Zhang, Sheng-Wu Xie, Yingli Chen, Yuxing Xia, Shikang Zhou

Published Oct 1, 1999• 16 citations
Publisher

Abstract

The transmission probability of an ultracold cascade three-level atom through micromaser systems is calculated and analyzed. It is shown that the micromaser systems can be used as velocity selectors for ultracold three-level atoms. The velocity selectivity is better for ultracold three-level atoms than for ultracold two-level atoms, and is better in a two-cavity system than in a one-cavity system.

DOI
10.1103/physreva.60.3321

Related papers

Transmission Probability of an Ultracold Three-Level Atom Through a Micromaser Cavity

Zhi‐Ming Zhang, Shikang Zhou, Yuxing Xia +2 more

The transmission probability of an ultracold cascade three-level atom through a micromaser cavity is calculated and analyzed. It is shown that the micromaser cavity can be used as a velocity selector for ultracold three-level atoms, and the velocity selectivity is better for three-level atoms than for two-level atoms.

Chinese Physics Letters•Aug 1, 1999•6 citations

V-type three-level-atom mazer with atomic coherence: velocity selection

Liang Wen-Qing, Niu Zhong-qi, Zhi-Ming Zhang +1 more

The velocity selection of the V-type three-level-atom mazer with atomic coherence is studied. It is shown that the atomic coherence can strongly affect transmission probability, and in turn, the velocity selection of atoms through the micromaser cavity. When the incident atoms are initially prepared in the lower state of the two upper ones (i.e., no injected atomic coherence), velocity selectivity is at a maximum. This shows that atomic coherence does not have a favourable effect on velocity selectivity in this scheme. The effects of other parameters are also studied.

Journal of Physics B Atomic Molecular and Optical Physics•Nov 13, 2001•3 citations

Transmission Probability of an Ultracold Atom in the Presence of Atomic Coherence

Jin Xiong, Chu Kai-Qin, Zhi‐Ming Zhang

We investigate the transmission probability of an ultracold V-type three-level atom passing through a micromaser cavity, in the presence of atomic coherence which is established by a coherent driving field. We show that the transmissibility of this micromaser system with the atomic coherence is better than that of the ordinary micromaser system without atomic coherence. When the driving field is strong enough, for any cavity length the ultracold atom can pass through the micromaser cavity freely.

Chinese Physics Letters•Feb 22, 2002•29 citations

Velocity selection for ultracold atoms using a micromaser

Markus Löffler, Georg M. Meyer, HERBERT WALTHER

The velocity distribution of ultracold atoms passing through a resonant microwave cavity can narrow by more than an order of magnitude. This velocity selection is due to resonances in the transmission through dressed-state potentials. The proposed device is an atom-optical analog of a Fabry-Pérot resonator and allows for macroscopic coherence lengths.

Europhysics Letters (EPL)•Mar 15, 1998•39 citations

Quantum theory of the micromaser with ultracold cascade three-level atoms: II. Spectral properties

Zhi‐Ming Zhang, Sheng-Wu Xie, Liang Wen-Qing +1 more

We study the spectrum of the micromaser injected with ultracold cascade three-level atoms. We examine the effects of the atomic centre-of-mass motion, the cavity length, the atom-field detuning, the ratio of the atomic injection rate to the cavity decay rate, and the number of photons in thermal equilibrium on the spectrum. We find that the micromaser injected with ultracold three-level atoms shows new spectral properties which are different from those of the micromaser injected with ultracold two-level atoms and the micromaser injected with thermal two- or three-level atoms. The main conclusions are that the linewidth can be broadened and the frequency can be either red-shifted or blue-shifted.

Journal of Physics B Atomic Molecular and Optical Physics•May 26, 2000•9 citations

Quantum theory of the micromaser with ultra-cold cascade three-level atoms

Zhi‐Ming Zhang, Sheng-Wu Xie, Shikang Zhou

We derive the dressed states for the interaction of a cascade three-level atom with a quantum cavity field, suggest using ultra-cold cascade three-level atoms in micromasers, put forward the idea of the two-photon mazer, establish its general quantum theory and study its emission probability and photon statistics. We examine the effects of the atomic centre-of-mass momentum, the atom-field detuning, the photon number in thermal equilibrium, the ratio of the atomic injection rate to the cavity decay rate and the interaction length on the emission probability and the photon statistics.

Journal of Physics B Atomic Molecular and Optical Physics•Aug 13, 1999•10 citations
The transmission probability of an ultracold cascade three-level atom through micromaser systems is calculated and analyzed. It is shown that the micromaser systems can be used as velocity selectors for ultracold three-level atoms. The velocity selectivity is better for ultracold three-level atoms than for ultracold two-level atoms, and is better in a two-cavity system than in a one-cavity system.
The velocity selection of the V-type three-level-atom mazer with atomic coherence is studied. It is shown that the atomic coherence can strongly affect transmission probability, and in turn, the velocity selection of atoms through the micromaser cavity. When the incident atoms are initially prepared in the lower state of the two upper ones (i.e., no injected atomic coherence), velocity selectivity is at a maximum. This shows that atomic coherence does not have a favourable effect on velocity selectivity in this scheme. The effects of other parameters are also studied.
We investigate the transmission probability of an ultracold V-type three-level atom passing through a micromaser cavity, in the presence of atomic coherence which is established by a coherent driving field. We show that the transmissibility of this micromaser system with the atomic coherence is better than that of the ordinary micromaser system without atomic coherence. When the driving field is strong enough, for any cavity length the ultracold atom can pass through the micromaser cavity freely.
We study the spectrum of the micromaser injected with ultracold cascade three-level atoms. We examine the effects of the atomic centre-of-mass motion, the cavity length, the atom-field detuning, the ratio of the atomic injection rate to the cavity decay rate, and the number of photons in thermal equilibrium on the spectrum. We find that the micromaser injected with ultracold three-level atoms shows new spectral properties which are different from those of the micromaser injected with ultracold two-level atoms and the micromaser injected with thermal two- or three-level atoms. The main conclusions are that the linewidth can be broadened and the frequency can be either red-shifted or blue-shifted.
We derive the dressed states for the interaction of a cascade three-level atom with a quantum cavity field, suggest using ultra-cold cascade three-level atoms in micromasers, put forward the idea of the two-photon mazer, establish its general quantum theory and study its emission probability and photon statistics. We examine the effects of the atomic centre-of-mass momentum, the atom-field detuning, the photon number in thermal equilibrium, the ratio of the atomic injection rate to the cavity decay rate and the interaction length on the emission probability and the photon statistics.