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

IEEE Conference on Decision and Control (CDC)

Single photon inverting pulse for an atom in a cavity

Yu Pan, Guofeng Zhang, Wei Cui, M. R. James

Published Dec 1, 2015• 3 citations
Publisher

Abstract

This paper considers the model where a two-level atom is placed in an open cavity. We show that the atom-cavity system can be taken as a linear quantum system under the driving of single photon state. We prove that the single photon input to the cavity could coherently invert the atomic state from the ground state to the excited state. We derive the exact expressions of the single photon inverting pulses when the open cavity is open to single-channel and two-channel input.

DOI
10.1109/cdc.2015.7403232

Related papers

Single-photon storing in coupled non-Markovian atom-cavity system

H. Z. Shen, M. Qin, X. X. Yi

Taking the non-Markovian effect into account, we study how to store a single photon of arbitrary temporal shape in a single atom coupled to an optical cavity. Our model applies to Raman transitions in three-level atoms, with one branch of the transition controlled by a driving pulse, and the other coupled to the cavity. For any couplings of input field to the optical cavity and detunings of the atom from the driving pulse and cavity, we extend the input-output relation from Markovian to non-Markovian dynamics. For most possible photon shapes, we derive an analytic expression for the driving pulse in order to completely map the input photon into the atom. We find that the amplitude of the driving pulse depends only on the detuning of the atom from the frequency of the cavity, i.e., the detuning of the atom to the driving pulse has no effect on the strength of the driving pulse.

arXiv:1402.2624•Physical Review A•Sep 20, 2013•37 citations

Full inversion of a two-level atom with a single-photon pulse in one-dimensional geometries

Eden Rephaeli, Jung‐Tsung Shen, Shanhui Fan

We analyze a system comprising a one-dimensional single-mode waveguide (a) coupled directly to a two-level atom (b) side-coupled to a cavity containing a two-level atom and show that in both cases it is possible to invert the atom with a single-photon pulse. In contrast to the semiclassical $\ensuremath{\pi}$ pulse, the inverting single-photon pulse is unique.

Physical Review A•Sep 8, 2010•76 citations

Exact analysis of quantum filter for systems driven by two counter-propagating single-photon states

Zhiyuan Dong, Guofeng Zhang, Nina H. Amini

In this paper, quantum filtering for a two-level atom, which is illuminated by two counter-propagating single-photon pulses, has been considered. The scenario is equivalent to that the two-level atom is driven by two input light field channels, each of which contains a single-photon. Based on two homodyne detection measurements, filtering equations in the Schrödinger picture have been derived explicitly.

IFAC-PapersOnLine•Jul 1, 2017•0 citations

Coherent single-photon generation and trapping with imperfect cavity QED systems

David A. Fattal, Raymond G. Beausoleil, Y. Yamamoto

We study analytically the dynamics of cavity QED nodes in a practical quantum network. Given a single 3-level $Λ$-type atom or quantum dot coupled to a micro-cavity, we derive several necessary and sufficient criteria for the coherent trapping and generation of a single photon pulse with a given waveform to be realizable. We prove that these processes can be performed with practical hardware -- such as cavity QED systems which are operating deep in the weak coupling regime -- given a set of restrictions on the single-photon pulse envelope. We systematically study the effects of spontaneous emission and spurious cavity decay on the transfer efficiency, including the case where more than one excited state participates in the dynamics. This work should open the way to very efficient optimizations of the operation of quantum networks.

arXiv:quant-ph/0606204•Jun 24, 2006•1 citation

Single-photon absorption in coupled atom-cavity systems

Jerome Dilley, Peter B. R. Nisbet-Jones, Bruce W. Shore +1 more

We show how to capture a single photon of arbitrary temporal shape with one atom coupled to an optical cavity. Our model applies to Raman transitions in three-level atoms with one branch of the transition controlled by a (classical) laser pulse, and the other coupled to the cavity. Photons impinging on the cavity normally exhibit partial reflection, transmission, and/or absorption by the atom. Only a control pulse of suitable temporal shape ensures impedance matching throughout the pulse, which is necessary for complete state mapping from photon to atom. For most possible photon shapes, we derive an unambiguous analytic expression for the shape of this control pulse, and we discuss how this relates to a quantum memory.

arXiv:1105.1699•Physical Review A•Feb 24, 2012•73 citations

Excitation of two atoms by a propagating single photon pulse

Navneeth Ramakrishnan, Yimin Wang, Valerio Scarani

We describe the interaction of two two-level atoms in free space with propagating modes of the quantized electromagnetic field, using the time-dependent Heisenberg-Langevin method. For single- photon pulses, we consider the effect of the pulse's spatial and temporal profiles on the atomic excitation. In particular, we find the ideal shape for a pulse to put exactly one excitation in any desired state of the bi-atomic system. Furthermore, we analyze the differences in the atomic dynamics between the cases of Fock state pulses and coherent state pulses.

arXiv:1411.3445•Nov 13, 2014•0 citations
This paper considers the model where a two-level atom is placed in an open cavity. We show that the atom-cavity system can be taken as a linear quantum system under the driving of single photon state. We prove that the single photon input to the cavity could coherently invert the atomic state from the ground state to the excited state. We derive the exact expressions of the single photon inverting pulses when the open cavity is open to single-channel and two-channel input.
Taking the non-Markovian effect into account, we study how to store a single photon of arbitrary temporal shape in a single atom coupled to an optical cavity. Our model applies to Raman transitions in three-level atoms, with one branch of the transition controlled by a driving pulse, and the other coupled to the cavity. For any couplings of input field to the optical cavity and detunings of the atom from the driving pulse and cavity, we extend the input-output relation from Markovian to non-Markovian dynamics. For most possible photon shapes, we derive an analytic expression for the driving pulse in order to completely map the input photon into the atom. We find that the amplitude of the driving pulse depends only on the detuning of the atom from the frequency of the cavity, i.e., the detuning of the atom to the driving pulse has no effect on the strength of the driving pulse.
We study analytically the dynamics of cavity QED nodes in a practical quantum network. Given a single 3-level ΛΛΛ-type atom or quantum dot coupled to a micro-cavity, we derive several necessary and sufficient criteria for the coherent trapping and generation of a single photon pulse with a given waveform to be realizable. We prove that these processes can be performed with practical hardware -- such as cavity QED systems which are operating deep in the weak coupling regime -- given a set of restrictions on the single-photon pulse envelope. We systematically study the effects of spontaneous emission and spurious cavity decay on the transfer efficiency, including the case where more than one excited state participates in the dynamics. This work should open the way to very efficient optimizations of the operation of quantum networks.
We show how to capture a single photon of arbitrary temporal shape with one atom coupled to an optical cavity. Our model applies to Raman transitions in three-level atoms with one branch of the transition controlled by a (classical) laser pulse, and the other coupled to the cavity. Photons impinging on the cavity normally exhibit partial reflection, transmission, and/or absorption by the atom. Only a control pulse of suitable temporal shape ensures impedance matching throughout the pulse, which is necessary for complete state mapping from photon to atom. For most possible photon shapes, we derive an unambiguous analytic expression for the shape of this control pulse, and we discuss how this relates to a quantum memory.
We describe the interaction of two two-level atoms in free space with propagating modes of the quantized electromagnetic field, using the time-dependent Heisenberg-Langevin method. For single- photon pulses, we consider the effect of the pulse's spatial and temporal profiles on the atomic excitation. In particular, we find the ideal shape for a pulse to put exactly one excitation in any desired state of the bi-atomic system. Furthermore, we analyze the differences in the atomic dynamics between the cases of Fock state pulses and coherent state pulses.