Nonclassicality in off-resonant Raman process
arXiv:1812.08264 · doi:10.1016/j.physleta.2019.04.005
Abstract
Raman process is used for generation of nonclassical states and subsequent applications due to its simplicity. In view of the experimental feasibility of the off-resonant Raman process at single photon level useful in long distance quantum communication and quantum memory, we perform here a detailed study of possibility of generation of nonclassical states under off-resonance conditions. Specifically, we have studied nonclassicality in the off-resonant Raman process with the help of a characteristic function written using more general solution than the conventional short-time solution under complete quantum treatment and established the significance of frequency detuning parameter in generation of nonclassical states. The obtained characteristic function remains Gaussian and reveals that larger values of frequency detuning parameters are favorable to induce nonclassicality in some cases. The single- and two-mode squeezing and antibunching as well as intermodal entanglement are reported in terms of experimentally accessible quantum noise fluctuations considering either phonon mode coherent or chaotic. Subsequently, the joint photon number and integrated intensity distributions are studied to analyze the performance of pair generation in Stokes-phonon and pump-phonon modes. The present study discusses the role of resonance conditions in generation of nonclassical states and establishes that experimentally controllable detuning parameter can be used to probe and enhance the generated nonclassicality.
The role of resonance conditions in generation of nonclassical states in Raman process is studied and established that experimentally controllable detuning parameter can be used to probe and enhance the generated nonclassicality in off-resonant Raman process
References in corpus (26)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Advances in Quantum Metrology
- Long-distance quantum communication with atomic ensembles and linear optics
- GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
- Peres-Horodecki separability criterion for continuous variable systems
- Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
- Quantum Random Number Generators
- One-sided Device-Independent Quantum Key Distribution: Security, feasibility, and the connection with steering
- From Bell's Theorem to Secure Quantum Key Distribution
- Generation of Nonclassical Photon Pairs for Scalable Quantum Communication with Atomic Ensembles
- Quantum cryptography with squeezed states
- Non-classical correlations between single photons and phonons from a mechanical oscillator
- First Long-Term Application of Squeezed States of Light in a Gravitational-Wave Observatory
- Quantum State Transfer Between Matter and Light
- Molecular cavity optomechanics: a theory of plasmon-enhanced Raman scattering
- A Deterministic and Storable Single-Photon Source Based on Quantum Memory
- Higher order nonclassicalities in a codirectional nonlinear optical coupler: Quantum entanglement, squeezing and antibunching
- A Broadband DLCZ Quantum Memory in Room-Temperature Atoms
- Photonic Counterparts of Cooper Pairs
- Nonclassical properties of a contradirectional nonlinear optical coupler
- Quantum Zeno effect and nonclassicality in a PT symmetric system of coupled cavities
- Higher order two-mode and multi-mode entanglement in Raman processes
- Probing nonclassicality in an optically-driven cavity with two atomic ensembles
- Relation between squeezing of vacuum fluctuations, quantum entanglement and sub-shot noise in Raman scattering
- Retrieving the Covariance Matrix of an Unknown Two-Mode Gaussian State by Means of a Reference Twin Beam
- Quantum-statistical theory of Raman scattering processes
Cited by in corpus (4)
- Impact of photon addition and subtraction on nonclassical and phase properties of a displaced Fock state
- Ideal pairing of the Stokes and anti-Stokes photons in the Raman process
- Interplay between quantum Zeno and anti-Zeno effects in a non-degenerate hyper-Raman nonlinear optical coupler
- Quasidistribution of phases in Raman process with weak and strong pumps