Gain compression in Josephson Traveling-Wave Parametric Amplifiers

• URL: http://arxiv.org/abs/2502.03022v1
• Date: Wed, 05 Feb 2025 09:25:35 GMT
• Title: Gain compression in Josephson Traveling-Wave Parametric Amplifiers
• Authors: Gwenael Le Gal, Guilliam Butseraen, Arpit Ranadive, Giulio Cappelli, Bekim Fazliji, Edgar Bonet, Eric Eyraud, Luca Planat, Nicolas Roch,
• Abstract summary: We present an experimental investigation of gain compression in a Josephson traveling-wave parametric amplifier based on a four-wave mixing process. Our findings indicate that pump depletion occurs during gain compression, but it is not the only mechanism involved in the saturation of a TWPA. This study provides valuable insights for optimizing TWPAs for applications that require high total input power, such as multiplexed qubit readout or broadband photon emission.
• Score: 0.0
• License:
• Abstract: Superconducting traveling-wave parametric amplifiers (TWPAs) are increasingly used in various applications, including quantum computing, quantum sensing, and dark matter detection. However, one important characteristic of these amplifiers, gain compression, has not received much attention. As a result, there is a lack of comprehensive experimental exploration of this phenomenon in the existing literature. In this study, we present an experimental investigation of gain compression in a Josephson traveling-wave parametric amplifier based on a four-wave mixing process. We have implemented a novel setup to monitor the complex transmission of both the pump and signal tones, which allows us to simultaneously track pump depletion and signal amplification as functions of signal power and frequency across the entire bandwidth of the device. Our findings indicate that, while pump depletion occurs during gain compression, it is not the only mechanism involved in the saturation of a TWPA. Power-induced phase-matching processes also take place within the device. This study provides valuable insights for optimizing TWPAs for applications that require high total input power, such as multiplexed qubit readout or broadband photon emission.

Related papers

• In-operando microwave scattering-parameter calibrated measurement of a Josephson travelling wave parametric amplifier [0.0]
  Superconducting travelling wave parametric amplifiers (TWPAs) are broadband near-quantum limited microwave amplifiers commonly used for qubit readout. We apply a microwave calibration technique to extract the S- parameters of a Josephson junction based TWPA in-operando.
  arXiv  Detail & Related papers  (2024-06-05T08:46:41Z)
• Broadband parametric amplification in DARTWARS [64.98268713737]
  Traveling-Wave Parametric Amplifiers (TWPAs) may be especially suitable for practical applications due to their multi-Gigahertz amplification bandwidth. The DARTWARS project aims to develop a KITWPA capable of achieving $20,$ dB of amplification. The measurements revealed an average amplification of approximately $9,$dB across a $2,$GHz bandwidth for a KITWPA spanning $17,$mm in length.
  arXiv  Detail & Related papers  (2024-02-19T10:57:37Z)
• Enhancing Dispersive Readout of Superconducting Qubits Through Dynamic Control of the Dispersive Shift: Experiment and Theory [47.00474212574662]
  A superconducting qubit is coupled to a large-bandwidth readout resonator. We show a beyond-state-of-the-art two-state-readout error of only 0.25,%$ in 100 ns integration time. The presented results are expected to further boost the performance of new and existing algorithms and protocols.
  arXiv  Detail & Related papers  (2023-07-15T10:30:10Z)
• Demonstration of a Quantum Noise Limited Traveling-Wave Parametric Amplifier [0.0]
  Recent progress in quantum computing and the development of novel detector technologies for astrophysics is driving the need for high-gain, broadband, and quantum-limited amplifiers. We present a purely traveling-wave parametric amplifier (TWPA) using an inverted NbTiN microstrip and amorphous Silicon dielectric.
  arXiv  Detail & Related papers  (2023-06-19T15:45:55Z)
• Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
  Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols. We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
  arXiv  Detail & Related papers  (2023-04-24T15:43:08Z)
• Intermodulation Distortion in a Josephson Traveling Wave Parametric Amplifier [2.814412986458045]
  Josephson traveling wave parametric amplifiers enable amplification of weak microwave signals close to the quantum limit. Intermodulation distortion can lead to significant crosstalk and reduction of fidelity for multiplexed readout of superconducting qubits.
  arXiv  Detail & Related papers  (2022-10-10T16:03:23Z)
• Numerical analysis of a three-wave-mixing Josephson traveling-wave parametric amplifier with engineered dispersion loadings [62.997667081978825]
  Recently proposed Josephson traveling-wave parametric amplifier has great potential in achieving a gain of 20 dB and a flat bandwidth of at least 4 GHz. We model the advanced JTWPA circuit with periodic modulation of the circuit parameters. engineered dispersion loadings allow achieving sufficiently wide $3$ dB-bandwidth from $3$ GHz to $9$ GHz combined with a reasonably small ripple.
  arXiv  Detail & Related papers  (2022-09-22T14:46:04Z)
• Readout of a quantum processor with high dynamic range Josephson parametric amplifiers [132.67289832617647]
  Device is matched to the 50 $Omega$ environment with a bandwidth of 250-300 MHz, with input saturation powers up to -95 dBm at 20 dB gain. A 54-qubit Sycamore processor was used to benchmark these devices. Design has no adverse effect on system noise, readout fidelity, or qubit dephasing.
  arXiv  Detail & Related papers  (2022-09-16T07:34:05Z)
• First design of a superconducting qubit for the QUB-IT experiment [50.591267188664666]
  The goal of the QUB-IT project is to realize an itinerant single-photon counter exploiting Quantum Non Demolition (QND) measurements and entangled qubits. We present the design and simulation of the first superconducting device consisting of a transmon qubit coupled to a resonator using Qiskit-Metal.
  arXiv  Detail & Related papers  (2022-07-18T07:05:10Z)
• Broadband Squeezed Microwaves and Amplification with a Josephson Traveling-Wave Parametric Amplifier [0.8527063867655793]
  Squeezing of the electromagnetic vacuum is an essential metrological technique used to reduce quantum noise in applications spanning gravitational wave detection, biological microscopy, and quantum information science. We develop a dual-pump, broadband Josephson traveling-wave parametric amplifier that combines a phase-sensitive extinction ratio of 56 dB with single-mode squeezing on par with the best resonator-based squeezers. Our amplifier is capable of simultaneously creating entangled microwave photon pairs with large frequency separation, with potential applications including high-fidelity qubit readout, quantum illumination and teleportation.
  arXiv  Detail & Related papers  (2022-01-27T01:31:32Z)
• Quantum analysis of second-order effects in superconducting travelling-wave parametric amplifiers [0.0]
  We have performed a quantum mechanical analysis of travelling-wave parametric amplifiers (TWPAs) We investigate the effect of impedance mismatch, the presence of upper idler modes, the presence of quantum and thermal noise, the generation of squeezed states, and the preservation of pre-squeezed states during amplification.
  arXiv  Detail & Related papers  (2021-04-13T16:50:16Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.