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

arXiv:1904.10841 · International Journal of Optics and Photonics

Full Quantum Analysis of Complete Population Transfer Using Frequency Boost

Fatemeh Ahmadinouri, Mehdi Hosseini, Farrokh Sarreshtedari

Published Jan 1, 2020• 1 citation
arXivHTMLPDF

Abstract

In this paper, we have proposed and demonstrated a new method of atomic population transfer.The transition dynamic of a two-level system is studied in a full quantum description of the Jaynes-Cummings model.Solving the timedependent Schrödinger equation, we have investigated the transition probabilities numerically and analytically by using a sudden boost of the laser frequency.The results show that complete population transfer can be achieved by adjusting the time of the frequency boost.

DOI
10.29252/ijop.14.1.91

Related papers

Robust population transfer by finite chirping method in a two-level system

Nouri, Fatemeh Ahmadi, Mehdi Hosseini, Farrokh Sarreshtedari

Considering a two-level quantum system, we have proposed and represented a new approach for robust population transfer. In this scheme, the laser frequency has been swept in a finite time interval which simplifies the experimental limitations of the population transfer process. It is shown that using the Jaynes-Cummings model and engineering the coupling strength, the frequency sweeping range and its time interval, it is possible to achieve a robust, stable and full population transfer.

arXiv:1810.04636•Oct 10, 2018•0 citations

Investigation of robust population transfer using quadratically chirped laser interacting with a two-level system

Fatemeh Ahmadinouri, Mehdi Hosseini, Farrokh Sarreshtedari

Abstract We have proposed and demonstrated a fast and robust method of population transfer between two quantum states using a quadratically chirped laser source. Numerically solving the time-dependent Schrödinger equation, transition probabilities have been obtained and the condition of the adiabatic passage is investigated. In this scheme, the wavelength of a laser source is quadratically swept in time to arbitrarily engineer the transition probabilities. The results show that complete and robust population transfer could be achieved by appropriate adjusting of the system parameters including the laser chirping parameter, the center frequency, and the coupling strength. Using this method, the time of the complete transition could be drastically decreased compared to the incorporation of the traditional linearly chirped laser.

arXiv:1902.04267•Physica Scripta•May 29, 2019•13 citations

Robust population transfer in a two-level system using finite chirping method

Fatemeh Ahmadinouri, Mehdi Hosseini, Farrokh Sarreshtedari

Abstract Considering a two-level quantum system, we have proposed and represented a new approach for robust population transfer. In this scheme, the laser frequency has been swept in a finite time interval which simplifies the experimental limitations of the population transfer process. It is shown that using the Jaynes–Cummings model and engineering the coupling strength, the frequency sweeping range and its time interval, it is possible to achieve a robust, stable and full population transfer.

Physica Scripta•Apr 5, 2019•6 citations

Effective Full Population Transfer in M-System Using Scanning Technique

Artur Aleksanyan

Abstract In this work, a theoretical model of the full population transfer in a five-level M type system is demonstrated. The method is based on the technique of linear scanning of the frequency of the laser field close to the resonance frequency of the corresponding transition. A comparison of the full population transfer obtained with the chirping technique with the results obtained by the method, which is based on the adiabatic population transfer of atomic levels, is made. The results are obtained using numerical computations.

Journal of Contemporary Physics (Armenian Academy of Sciences)•Jan 1, 2021•4 citations

Dynamic analysis of temporal evolution of atomic transition in a two-level system under the frequency-chirped field

Cai Xiao-yan

The temporal evolution of atomic transition in a two-level system under the frequency-chirped pulse field and its dynamic analysis are discussed respectively by means of the density matrix equation and the method of Bloch vector model.The result shows that the population probability oscillates in time domain under the effects of frequency-chirped pulse.The dynamic evolution process of the Bloch vector indicates that the oscillation of the population probability reflects the physical transformation process among the population transfer,dispersion and absorption in the system.

Journal of Shaanxi Normal University•Jan 1, 2008•0 citations

Multilevel atomic dynamics in modulated laser field

Sergey V. Prants

We develop the group-theoretical approach for analytically solving the time-dependent Schrodinger equations for multilevel atoms driven by amplitude- and/or frequency-modulated concurrent laser fields. The time evolution of externally driven N-level atoms is calculated in an explicit matrix form. The exact analytical conditions for complete population transfer and its return are simply connected with the parameters of the symmetry. We consider in detail the case of a four-level system driven by concurrent laser pulses of different forms.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•May 3, 1994•1 citation
In this paper, we have proposed and demonstrated a new method of atomic population transfer.The transition dynamic of a two-level system is studied in a full quantum description of the Jaynes-Cummings model.Solving the timedependent Schrödinger equation, we have investigated the transition probabilities numerically and analytically by using a sudden boost of the laser frequency.The results show that complete population transfer can be achieved by adjusting the time of the frequency boost.
Abstract We have proposed and demonstrated a fast and robust method of population transfer between two quantum states using a quadratically chirped laser source. Numerically solving the time-dependent Schrödinger equation, transition probabilities have been obtained and the condition of the adiabatic passage is investigated. In this scheme, the wavelength of a laser source is quadratically swept in time to arbitrarily engineer the transition probabilities. The results show that complete and robust population transfer could be achieved by appropriate adjusting of the system parameters including the laser chirping parameter, the center frequency, and the coupling strength. Using this method, the time of the complete transition could be drastically decreased compared to the incorporation of the traditional linearly chirped laser.
Abstract Considering a two-level quantum system, we have proposed and represented a new approach for robust population transfer. In this scheme, the laser frequency has been swept in a finite time interval which simplifies the experimental limitations of the population transfer process. It is shown that using the Jaynes–Cummings model and engineering the coupling strength, the frequency sweeping range and its time interval, it is possible to achieve a robust, stable and full population transfer.
Abstract In this work, a theoretical model of the full population transfer in a five-level M type system is demonstrated. The method is based on the technique of linear scanning of the frequency of the laser field close to the resonance frequency of the corresponding transition. A comparison of the full population transfer obtained with the chirping technique with the results obtained by the method, which is based on the adiabatic population transfer of atomic levels, is made. The results are obtained using numerical computations.
The temporal evolution of atomic transition in a two-level system under the frequency-chirped pulse field and its dynamic analysis are discussed respectively by means of the density matrix equation and the method of Bloch vector model.The result shows that the population probability oscillates in time domain under the effects of frequency-chirped pulse.The dynamic evolution process of the Bloch vector indicates that the oscillation of the population probability reflects the physical transformation process among the population transfer,dispersion and absorption in the system.
We develop the group-theoretical approach for analytically solving the time-dependent Schrodinger equations for multilevel atoms driven by amplitude- and/or frequency-modulated concurrent laser fields. The time evolution of externally driven N-level atoms is calculated in an explicit matrix form. The exact analytical conditions for complete population transfer and its return are simply connected with the parameters of the symmetry. We consider in detail the case of a four-level system driven by concurrent laser pulses of different forms.