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

Semiconductor cavity QED with squeezed light: Nonlinear regime

Eyob Alebachew Sete, Hichem Eleuch, Sumanta Das

Published Nov 9, 2011• 69 citations
Publisher

Abstract

We present a study of semiconductor cavity QED effects with squeezed light. We investigate the effects of external squeezed light produced by a subthreshold optical parametric down conversion on the quantum features of the cavity as well as output radiation in the presence of exciton-exciton scattering. It turns out that the width of the spectrum of the cavity field strongly depends on the degree of squeezing. This effect is observed both in weak- and strong-coupling regimes. Moreover, we show that the external squeezed light has a profound effect on the amount of squeezing of the output field.

DOI
10.1103/physreva.84.053817

Related papers

Squeezed light in a semiconductor microcavity

Xuan Zuo, Zi-Xu Lu, Zhiyuan Fan +2 more

Squeezed light is a particularly useful quantum resource, which finds broad applications in quantum information processing, quantum metrology and sensing, and biological measurements. Here we show how to produce squeezed light exploiting the strong exciton–phonon nonlinear interaction in a semiconductor microcavity. The semiconductor microcavity is embedded with a quantum well, which supports both linear and nonlinear interactions among excitons, phonons, and cavity photons. We show that the strong exciton–phonon deformation potential interaction can induce a quadrature-squeezed cavity output field, and further reveal an important role of the exciton–photon coupling in engineering the squeezing spectrum and improving the robustness of the squeezing against thermal noise. Our results indicate that substantial optical squeezing in a broad band, up to tens of gigahertz, can be achieved using currently available parameters.

arXiv:2408.09323•npj Quantum Information•May 13, 2026•2 citations

External-field effect on quantum features of radiation emitted by a quantum well in a microcavity

Eyob Alebachew Sete, Sumanta Das, Hichem Eleuch

We consider a semiconductor quantum well in a microcavity driven by coherent light and coupled to a squeezed vacuum reservoir. By systematically solving the pertinent quantum Langevin equations in the strong-coupling and low-excitation regimes, we study the effect of exciton-photon detuning, external coherent light, and the squeezed vacuum reservoir on vacuum Rabi splitting and on quantum statistical properties of the light emitted by the quantum well. We show that the exciton-photon detuning leads to a shift in polariton resonance frequencies and a decrease in fluorescence intensity. We also show that the fluorescent light exhibits quadrature squeezing, which predominately depends on the exciton-photon detuning and the degree of the squeezing of the input field.

arXiv:1109.4375•Physical Review A•Feb 25, 2011•19 citations

Nonlinear dynamics in a dipolariton cavity with a squeezed vacuum

Houcem Jabri, Hichem Eleuch

Dipolaritons are quasiparticles formed in double quantum wells’ microcavities driven by a coherent field. Here, we investigate the correlations and the quantum fluctuations in the light emitted by a dipolariton cavity pumped by a laser. By studying the noise spectrum in the strong and weak coupling regimes, we show that the squeezing generated by the direct and indirect excitonic nonlinearities is strongly enhanced by coupling the system to a squeezed vacuum. As a consequence, this coupling transforms the statistical light propriety from coherent to highly squeezed states, depending on the squeeze parameter strength. Furthermore, the squeezed reservoir stabilizes the nonclassical effect even with the high fluctuations caused by indirect exciton nonlinearity. It turns out that the combination of excitonic nonlinearities and squeezed vacuum is a good solution for producing stable and strong squeezing.

Journal of the Optical Society of America B•Apr 27, 2020•8 citations

Quantum correlations and optical effects in a quantum-well cavity with a second-order nonlinearity

Houcem Jabri

Abstract In this paper, we investigate the photon correlations and the statistical properties of light produced by an optical cavity with an embedded quantum well interacting with squeezed light. We show that the squeezed source substantially improves the intensity of the emitted light and generates a narrowing and a duplication of the spectrum peaks. With a strong dependence on frequency detuning, the cavity produces considerably squeezed radiation, and perfect squeezing is predicted for weak light–matter interactions. Furthermore, the system under consideration presents a bunching effect of the transmitted radiation resulting from weak pumping of the coherent field. The results obtained may have potential applications in the fields of very accurate measurement and quantum computing.

Communications in Theoretical Physics•Jul 19, 2021•0 citations

Interaction of a quantum well with squeezed light: Quantum-statistical properties

Eyob Alebachew Sete, Hichem Eleuch

We investigate the quantum statistical properties of the light emitted by a quantum well interacting with squeezed light from a degenerate subthreshold optical parametric oscillator. We obtain analytical solutions for the pertinent quantum Langevin equations in the strong-coupling and low-excitation regimes. Using these solutions we calculate the intensity spectrum, autocorrelation function, and quadrature squeezing for the fluorescent light. We show that the fluorescent light exhibits bunching and quadrature squeezing. We also show that the squeezed light leads to narrowing of the width of the spectrum of the fluorescent light.

arXiv:1109.4368•Physical Review A•Oct 11, 2010•87 citations

Quantum features in a semiconductor microcavity with optical parametric oscillator and input squeezed field

Kidus Yosef, Desalegn Ayehu

Abstract In this paper we present a theoretical analysis of a scheme to enhance quantum statistical features of fluorescent light generated by a quantum well coupled to a degenerate optical parametric oscillator (DOPO) in a microcavity with an input squeezed field. We derive the quantum Langevin equations and solve them using Laplace transform method in the strong coupling regime. It is found that the intensity of the light is significantly enhanced while the normalized intensity spectrum remains largely unaffected by the external squeezed field. Additionally, the emitted light exhibits photon bunching, and the squeezing is notably improved, with the quadrature variance asymptotically approaching zero as the squeezing parameter increases. We also study the quadrature squeezing of the cavity mode and we show that a semiconductor microcavity can serve as a typical source of cavity mode squeezing, with the amount of squeezing significantly enhanced by the DOPO and the external squeezed field.

Physica Scripta•Jul 17, 2025•1 citation
We present a study of semiconductor cavity QED effects with squeezed light. We investigate the effects of external squeezed light produced by a subthreshold optical parametric down conversion on the quantum features of the cavity as well as output radiation in the presence of exciton-exciton scattering. It turns out that the width of the spectrum of the cavity field strongly depends on the degree of squeezing. This effect is observed both in weak- and strong-coupling regimes. Moreover, we show that the external squeezed light has a profound effect on the amount of squeezing of the output field.
Squeezed light is a particularly useful quantum resource, which finds broad applications in quantum information processing, quantum metrology and sensing, and biological measurements. Here we show how to produce squeezed light exploiting the strong exciton–phonon nonlinear interaction in a semiconductor microcavity. The semiconductor microcavity is embedded with a quantum well, which supports both linear and nonlinear interactions among excitons, phonons, and cavity photons. We show that the strong exciton–phonon deformation potential interaction can induce a quadrature-squeezed cavity output field, and further reveal an important role of the exciton–photon coupling in engineering the squeezing spectrum and improving the robustness of the squeezing against thermal noise. Our results indicate that substantial optical squeezing in a broad band, up to tens of gigahertz, can be achieved using currently available parameters.
We consider a semiconductor quantum well in a microcavity driven by coherent light and coupled to a squeezed vacuum reservoir. By systematically solving the pertinent quantum Langevin equations in the strong-coupling and low-excitation regimes, we study the effect of exciton-photon detuning, external coherent light, and the squeezed vacuum reservoir on vacuum Rabi splitting and on quantum statistical properties of the light emitted by the quantum well. We show that the exciton-photon detuning leads to a shift in polariton resonance frequencies and a decrease in fluorescence intensity. We also show that the fluorescent light exhibits quadrature squeezing, which predominately depends on the exciton-photon detuning and the degree of the squeezing of the input field.
Dipolaritons are quasiparticles formed in double quantum wells’ microcavities driven by a coherent field. Here, we investigate the correlations and the quantum fluctuations in the light emitted by a dipolariton cavity pumped by a laser. By studying the noise spectrum in the strong and weak coupling regimes, we show that the squeezing generated by the direct and indirect excitonic nonlinearities is strongly enhanced by coupling the system to a squeezed vacuum. As a consequence, this coupling transforms the statistical light propriety from coherent to highly squeezed states, depending on the squeeze parameter strength. Furthermore, the squeezed reservoir stabilizes the nonclassical effect even with the high fluctuations caused by indirect exciton nonlinearity. It turns out that the combination of excitonic nonlinearities and squeezed vacuum is a good solution for producing stable and strong squeezing.
Abstract In this paper, we investigate the photon correlations and the statistical properties of light produced by an optical cavity with an embedded quantum well interacting with squeezed light. We show that the squeezed source substantially improves the intensity of the emitted light and generates a narrowing and a duplication of the spectrum peaks. With a strong dependence on frequency detuning, the cavity produces considerably squeezed radiation, and perfect squeezing is predicted for weak light–matter interactions. Furthermore, the system under consideration presents a bunching effect of the transmitted radiation resulting from weak pumping of the coherent field. The results obtained may have potential applications in the fields of very accurate measurement and quantum computing.
We investigate the quantum statistical properties of the light emitted by a quantum well interacting with squeezed light from a degenerate subthreshold optical parametric oscillator. We obtain analytical solutions for the pertinent quantum Langevin equations in the strong-coupling and low-excitation regimes. Using these solutions we calculate the intensity spectrum, autocorrelation function, and quadrature squeezing for the fluorescent light. We show that the fluorescent light exhibits bunching and quadrature squeezing. We also show that the squeezed light leads to narrowing of the width of the spectrum of the fluorescent light.
Abstract In this paper we present a theoretical analysis of a scheme to enhance quantum statistical features of fluorescent light generated by a quantum well coupled to a degenerate optical parametric oscillator (DOPO) in a microcavity with an input squeezed field. We derive the quantum Langevin equations and solve them using Laplace transform method in the strong coupling regime. It is found that the intensity of the light is significantly enhanced while the normalized intensity spectrum remains largely unaffected by the external squeezed field. Additionally, the emitted light exhibits photon bunching, and the squeezing is notably improved, with the quadrature variance asymptotically approaching zero as the squeezing parameter increases. We also study the quadrature squeezing of the cavity mode and we show that a semiconductor microcavity can serve as a typical source of cavity mode squeezing, with the amount of squeezing significantly enhanced by the DOPO and the external squeezed field.