Quantum limited amplifier

The coupling of a mechanical oscillator to an electromagnetic mode gives rise to numerous phenomena, such as optomechanical cooling and amplification of the mechanical mode, optomechanically induced transparency etc. All these standard optomechanical phenomena rely on a specific hierarchy of the time scales associated to the decoherence of the modes, namely that the energy decay of the electromagnetic mode is much larger than that of the mechanical mode. Here we introduce and analyze the regime where this hierarchy is reversed. It is shown that this regime can be used for realizing a quantum-limited microwave amplifier, which holds significance for signal detection in many areas of science, ranging from quantum computers to radio astronomy. We report on the experimental progress towards this goal, including the fabrication and characterization of a suitable microwave optomechanical device.

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• [Report] A near–quantum-limited Josephson traveling-wave parametric amplifier
• Near-quantum-limited amplification from inelastic Cooper-pair tunnelling
• Olivia Lanes
• Microwave amplifier for quantum electronics
• Quantum amplifier
• Luxman 507uxii review
• Bj 200 amplifier
• Donate to arXiv
• JBL Россия – домашняя страница

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[Report] A near–quantum-limited Josephson traveling-wave parametric amplifier

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Click here to learn more. By continuing to use this site, you agree to our use of cookies. We've also updated our Privacy Notice. Click here to see what's new. We experimentally demonstrate that a type-II pulsed optical parametric amplifier operated in a phase-insensitive configuration works as a near-perfect classical optical amplifier whose noise figure approaches 3 dB at high gains.

We further demonstrate that, when operated in a phase-sensitive configuration, this amplifier works as a quantum-optical amplifier whose noise figure goes below 3 dB and approaches 0 dB at high gains. The noise figure of 1. Bencheikh, E. Huntziger, and J. Levenson J. B 12 5 Kyo Inoue J. B 35 8 Paul L. Voss, Kahraman G. B 23 4 Zhi Tong and Stojan Radic Adv. Deutsch and I. Abram J.

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Levenson, I. Abram, Th. Rivera, and Ph. Grangier, "Reduction of quantum noise in optical parametric amplification," J. B 10 , The topics in this list come from the Optics and Photonics Topics applied to this article. Abstract We experimentally demonstrate that a type-II pulsed optical parametric amplifier operated in a phase-insensitive configuration works as a near-perfect classical optical amplifier whose noise figure approaches 3 dB at high gains.

Quantum noise reduction in quasi-phase-matched optical parametric amplification K. View More Low-noise optical amplification and signal processing in parametric devices Zhi Tong and Stojan Radic Adv. Reduction of quantum noise in soliton propagation by phase-sensitive amplification I. Previous Article Next Article.

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Near-quantum-limited amplification from inelastic Cooper-pair tunnelling

With an accout for my. Detecting single—photon level signals—carriers of both classical and quantum information—is particularly challenging for low-energy microwave frequency excitations. Here we introduce a superconducting amplifier based on a Josephson junction transmission line. Unlike current standing-wave parametric amplifiers, this traveling wave architecture robustly achieves high gain over a bandwidth of several gigahertz with sufficient dynamic range to read out 20 superconducting qubits.

Olivia Lanes

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Characterization of a flux-driven Josephson parametric amplifier with near quantum-limited added noise for axion search experiments. Cited 0 time in Cited 0 time in. Hit : 53 Download : 0. The experimental non-observation of charge-parity CP symmetry violation in quantum chromodynamics is commonly referred to as the strong CP problem. The axion, a hypothetical elementary pseudoscalar, is expected to solve the strong CP problem and is also a promising candidate for dark matter. The most sensitive axion search experiments operate at millikelvin temperatures and hence rely on instrumentation that carries signals from a system at cryogenic temperatures to room temperature instrumentation. One of the biggest limiting factors affecting the parameter scanning speed of these detectors is the noise added by the components in the signal detection chain. Since the first amplifier in the chain limits the minimum noise, low-noise amplification is of paramount importance. This paper reports on the operation of a flux-driven Josephson parametric amplifier JPA operating at around 2.

Microwave amplifier for quantum electronics

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Quantum amplifier

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. The readout of microwave quantum systems, such as spin or superconducting qubits, requires low-noise amplifiers with added noise as close as possible to the quantum limit. This limit has so far been approached only by parametric amplifiers that exploit nonlinearities in superconducting circuits and are driven by a strong microwave pump tone.

Luxman 507uxii review

Don't have an account? A parametric oscillator is an oscillating system in which one of the parameters, typically either the resonance frequency or damping, can be modulated by an external pump. Parametric oscillations can be found in a wide variety of systems including radio-frequency circuits, optical and mechanical systems, and even single electrons in a Penning trap. In recent years, interest in parametric oscillators has revived in many areas of physics, ranging from basic physics to applications. For instance, they are being used as quantum-limited amplifiers in an increasingly large number of experiments in quantum information and computing. At the same time, interest in their basic physics in the quantum regime, in which they are a model system for driven, nonlinear systems, has grown commensurately.

Bj 200 amplifier

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Quantum information technology requires low-noise and extreme broadband amplifiers for weak microwave signals. A novel parametric amplifier with Josephson junctions that was developed at PTB distinguishes itself through high gain, broad bandwidth and low noise. A parametric amplifier is a low-noise high-frequency amplifier which converts energy from a pump into a signal wave by means of nonlinear, reactive components. Modern parametric amplifiers with Josephson junctions Josephson parametric amplifiers — JPAs exhibit almost quantum-limited noise behavior, but due to their resonance architecture, they cannot attain sufficiently broad bandwidths. These are, however, urgently required for ultrasensitive microwave sensors for the detection of microwave signals on the order of single photons or for the development of quantum computers. In contrast, JPAs based on so-called traveling waves can achieve broad bandwidths.

JBL Россия – домашняя страница

The industry research report Global Optical Amplifier Market consists of an in-depth analysis of the global industry that aims to offer a comprehensive study of market insights associated with the most important components of the market. The report provides an overview of these markets on various fronts, such as market size, market share, market penetration of products and services, downstream areas in the market, large suppliers operating in the territory, analysis prices, etc. This can help readers of the global business industry to better understand the large regional and national markets for Optical Amplifier. The reports contain an overview and review of the leading companies operating in the industry that are considered to be revenue-driving for the market. Here, based on a study of historical data, which examines the scenarios currently seen in different markets, including regional and national, and the trends recorded, provides a forecast for the market.

This project began in June and concluded in May This project produced the lowest noise temperature amplifiers ever produced, both in absolute terms and in relation to the Standard Quantum Limit. Being an order of magnitude lower in noise than the best HFET devices available, they are of great interest to a number of groups. Potential applications are numerous, from dark-matter searches to national security applications in Quantum Information Processing.