Photon-added coherent states using the continuous-mode formalism
arXiv:2010.11846 · doi:10.1103/PhysRevA.102.043709
Abstract
The addition of a photon into the same mode as a coherent state produces a nonclassical state that has interesting features, including quadrature squeezing and a sub-Poissonian photon-number distribution. The squeezed nature of photon-added coherent (PAC) states potentially offers an advantage in quantum sensing applications. Previous theoretical works have employed a single-mode treatment of PAC states. Here, we use a continuous-mode approach that allows us to model PAC state pulses. We study the properties of a single-photon and coherent state wavepacket superimposed with variable temporal and spectral overlap. We show that, even without perfect overlap, the state exhibits a sub-Poissonian number distribution, second-order quantum correlations and quadrature squeezing for a weak coherent state. We also include propagation loss in waveguides and study how the fidelity and other properties of PAC state pulses are affected.
arXiv comment15 pages, 7 figures
References in corpus (26)
- Quantum information with continuous variables
- Photonic quantum technologies
- Continuous-variable optical quantum state tomography
- Squeezed states of light and their applications in laser interferometers
- Single-photon excitation of a coherent state: catching the elementary step of stimulated light emission
- Recent developments in photon-level operations on travelling light fields
- Photonic Maxwell's demon
- Engineering quantum operations on traveling light beams by multiple photon addition and subtraction
- Quantum Statistics of Surface Plasmon Polaritons in Metallic Stripe Waveguides
- Non-Gaussianity of quantum states: an experimental test on single-photon added coherent states
- Tomography of a High-Purity Narrowband Photon From a Transient Atomic Collective Excitation
- Photon-added coherent states as nonlinear coherent states
- Single-photon excitation of surface plasmon polaritons
- Statistics of photon-subtracted and photon-added states
- Experimentally accessing the optimal temporal mode of traveling quantum light states
- Precision measurements with photon-subtracted or photon-added Gaussian states
- Dynamical modeling of pulsed two-photon interference
- Practical quantum metrology with large precision gains in the low photon number regime
- Real-Time Quadrature Measurement of a Single-Photon Wavepacket with Continuous Temporal-Mode-Matching
- Experimental creation and analysis of displaced number states
- Entangled photon added coherent states
- Generating photon-added states without adding a photon
- Truncated Coherent States and Photon-addition
- Nonlinear coherent state generation in the two-photon Jaynes-Cummings model
- Single photon-added coherent states: estimation of parameters and fidelity of the optical homodyne detection
- Exact calculation of stimulated emission driven by pulsed light