Non-Gaussian features from Excited Squeezed Vacuum State
arXiv:1410.4899 · doi:10.1016/j.optcom.2015.01.053
Abstract
In this work, we introduce a non-Gaussian quantum state named excited squeezed vacuum state (ESVS), which can be ustilized to describe quantum light field emitted from the multiphoton quantum process occurred in some restricted quantum systems. We investigate its nonclassical properties such as Wigner distribution in phase space, photon number distribution, the second-order autocorrelation and the quadrature fluctuations. By virtue of the Hilbert-Schmidt distance method, we quantify the non-Gaussianity of the ESVS. Due to the similar photon statistics, we examine the fidelity between the ESVS and the photon-subtraction squeezed vacuum state (PSSVS), and then find the optimal fidelity by monitoring the relevant parameters.
17 pages, 5 figures
References in corpus (36)
- Quantum information with continuous variables
- Quantum-enhanced measurements: beating the standard quantum limit
- Quantum nature of a strongly-coupled single quantum dot-cavity system
- Quantum discord and the power of one qubit
- Resolving photon number states in a superconducting circuit
- Quantum computation with optical coherent states
- Generation of a superposition of odd photon number states for quantum information networks
- Entangled coherent states: teleportation and decoherence
- Quantum discord as resource for remote state preparation
- Continuous-variable teleportation improvement by photon subtraction via conditional measurement
- Photon Antibunching from a Single Quantum Dot-Microcavity System in the Strong Coupling Regime
- Noiseless Linear Amplification and Distillation of Entanglement
- Non-Gaussian entanglement distillation for continuous variables
- Controllable generation of highly nonclassical states from nearly pure squeezed vacua
- Fault-tolerant linear optical quantum computing with small-amplitude coherent states
- Teleportation improvement by inconclusive photon subtraction
- Nonlinear spectroscopy of photons bound to one atom
- Quantum-optical catalysis: generating "Schroedinger kittens" by means of linear optics
- Quantifying the non-Gaussian character of a quantum state by quantum relative entropy
- Quantifying non-Gaussianity for quantum information
- Schrodinger cats and their power for quantum information processing
- A measure of the non-Gaussian character of a quantum state
- Normal-mode spectroscopy of a single bound atom-cavity system
- The optimal cloning of quantum coherent states is non-Gaussian
- Giant Kerr nonlinearities in Circuit-QED
- Experimental detection of non-classical correlations in mixed state quantum computation
- Scheme for proving the bosonic commutation relation using single-photon interference
- Probing the ladder of dressed states and nonclassical light generation in quantum dot-cavity QED
- Entanglement, discord and the power of quantum computation
- A conditional-phase switch at the single-photon level
- Quantum discord as a resource in quantum communication
- Quantum Coherent Nonlinear Feedbacks with Applications to Quantum Optics on Chip
- Quantum Discord and Quantum Computing - An Appraisal
- Generating Entangled Spin States for Quantum Metrology by Single-Photon Detection
- Spectral Analysis and Identification of Noises in Quantum Systems
- A two-level atom coupled to a controllable squeezed vacuum field reservoir
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