Enhancing photon squeezing one Leviton at a time

Abstract

A mesoscopic device in the simple tunnel junction or quantum point contact geometry emits microwaves with remarkable quantum properties, when subjected to a sinusoidal drive in the GHz range. In particular, single and two-photon squeezing as well as entanglement in the frequency domain have been reported. By revising the photo-assisted noise analysis developed in the framework of electron quantum optics, we present a detailed comparison between the cosine drive case and other experimentally relavent periodic voltages such as rectangular and Lorentzian pulses. We show that the latter drive is the best candidate in order to enhance quantum features and purity of the outgoing single and two-photon states, a noteworthy result in a quantum information perspective.

9 pages, 5 figures

References in corpus (13)

• An On-Demand Coherent Single Electron Source
• Coherence and Indistinguishability of Single Electrons Emitted by Independent Sources
• Coherent Particle Transfer in an On-Demand Single-Electron Source
• Electron quantum optics in quantum Hall edge channels
• Real time decoherence of Landau and Levitov quasi-particles in quantum Hall edge channels
• Dynamics of Quantum Noise in a Tunnel Junction under ac Excitation
• Dynamical Coulomb Blockade of Shot Noise
• Antibunched photons emitted by a quantum point contact out of equilibrium
• Fluctuation-Dissipation Relations of a Tunnel Junction Driven by a Quantum Circuit
• Crystallization of Levitons in the fractional quantum Hall regime
• Experimental Violation Of Bell-like Inequalities By Electronic Shot Noise
• Non-Classical Radiation Emission By A Coherent Conductor
• Characterization and control of charge transfer in a tunnel junction

Cited by in corpus (12)

• Charging and energy fluctuations of a driven quantum battery
• Collisional interferometry of Levitons in quantum Hall edge channels at $\nu =2$
• Levitons in superconducting point contacts
• Hong-Ou-Mandel heat noise in the quantum Hall regime
• Levitons in helical liquids with Rashba spin-orbit coupling probed by a superconducting contact
• Processing quantum signals carried by electrical currents
• Probing interactions via non-equilibrium momentum distribution and noise in integer quantum Hall systems at $\nu =2$
• Spectral properties of interacting helical channels driven by Lorentzian pulses
• Observation of edge magnetoplasmon squeezing in a quantum Hall conductor
• Suppression of the radiation squeezing in interacting quantum Hall edge channels
• Hybrid interacting quantum Hall thermal machine
• Non-classical current noise and light emission of an ac-driven tunnel junction