Related papers: Josephson Traveling-Wave Parametric Amplifier with Inverse Kerr Phase Matching

Josephson Traveling-Wave Parametric Amplifier with Inverse Kerr Phase Matching

URL: http://arxiv.org/abs/2507.17039v1
Date: Tue, 22 Jul 2025 21:53:29 GMT
Title: Josephson Traveling-Wave Parametric Amplifier with Inverse Kerr Phase Matching
Authors: M. T. Bell,
Abstract summary: Superconducting traveling-wave parametric amplifiers (TWPA) have emerged as highly versatile devices.<n>Key challenges with this technology include achieving sufficient gain with minimal gain ripple while maintaining low noise performance.<n>We present an experimental demonstration of the inverse Kerr phase matching technique in a TWPA.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Superconducting traveling-wave parametric amplifiers (TWPA) have emerged as highly versatile devices, offering broadband amplification with quantum-limited noise performance. They hold significant potential for addressing the readout bottleneck in prototype quantum computers, enabling scalability. Key challenges with this technology include achieving sufficient gain with minimal gain ripple while maintaining low noise performance. Efficient phase matching between a weak signal and a strong pump over the entire length of the TWPA is critical to overcoming these challenges. We present an experimental demonstration of the inverse Kerr phase matching technique in a TWPA, first proposed in Ref. Phys. Rev. Appl. 4, 024014. This method addresses several limitations of conventional dispersion engineering approaches of phase matching in the four-wave mixing parametric process in TWPAs. Most notably the existence of an unusable region of gain near the pump frequency which typically corresponds to the region of most optimal phase matching and maximum gain. The inverse Kerr phase matching approach, allows for greater frequency separation between the region of optimal gain and pump, \textit{in situ} tunability of the pump, minimal gain ripple, and a compact footprint which reduces losses. A TWPA employing the inverse Kerr phase matching technique experimentally demonstrated 20 dB of gain over a 3 GHz instantaneous bandwidth, with a tunable bandwidth of 8 GHz, minimal gain ripple, and near quantum-limited noise performance, with 1.5 photons of added noise.

Related papers

Traveling-Wave Parametric Amplifier with Passive Reverse Isolation [0.0]
Traveling-wave parametric amplifiers (TWPAs) have attracted much attention for their broadband amplification and near-quantum-limited noise performance.<n>We present a multi-stage Traveling-Wave Parametric Amplifier (mTWPA) that addresses this limitation by achieving passive in-band reverse isolation alongside near-quantum-limited noise performance.
arXiv Detail & Related papers (2025-05-07T02:02:53Z)
High-Efficiency, Low-Loss Floquet-mode Traveling Wave Parametric Amplifier [3.8846025204068835]
We experimentally demonstrate the first Floquet-mode traveling-wave parametric amplifier (Floquet TWPA)<n>Floquet TWPA achieves nearly quantum-limited noise performance, minimal dissipation, and broadband operation.<n>These general-purpose Floquet TWPAs are suitable for fast, high-fidelity multiplexed readout in large-scale quantum systems.
arXiv Detail & Related papers (2025-03-14T18:58:23Z)
Gain compression in Josephson Traveling-Wave Parametric Amplifiers [0.0]
We present an experimental investigation of gain compression in a Josephson traveling-wave parametric amplifier based on a four-wave mixing process.<n>Our findings indicate that pump depletion occurs during gain compression, but it is not the only mechanism involved in the saturation of a TWPA.<n>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.
arXiv Detail & Related papers (2025-02-05T09:25:35Z)
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)
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)
Autonomous coherence protection of a two-level system in a fluctuating environment [68.8204255655161]
We re-examine a scheme originally intended to remove the effects of static Doppler broadening from an ensemble of non-interacting two-level systems (qubits) We demonstrate that this scheme is far more powerful and can also protect a single (or even an ensemble) qubit's energy levels from noise which depends on both time and space.
arXiv Detail & Related papers (2023-02-08T01:44:30Z)
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)
Topological Josephson parametric amplifier array: A proposal for directional, broadband, and low-noise amplification [39.58317527488534]
Low-noise microwave amplifiers are crucial for detecting weak signals in fields such as quantum technology and radio astronomy. We show that compact devices with few sites can achieve exceptional performance, with gains exceeding 20 dB over a bandwidth ranging from hundreds of MHz to GHz. The device also operates near the quantum noise limit and provides topological protection against up to 15% fabrication disorder.
arXiv Detail & Related papers (2022-07-27T18:07:20Z)
Stabilizing and improving qubit coherence by engineering noise spectrum of two-level systems [52.77024349608834]
Superconducting circuits are a leading platform for quantum computing. Charge fluctuators inside amorphous oxide layers contribute to both low-frequency $1/f$ charge noise and high-frequency dielectric loss. We propose to mitigate those harmful effects by engineering the relevant TLS noise spectral densities.
arXiv Detail & Related papers (2022-06-21T18:37:38Z)
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)
Spectrally multimode integrated SU(1,1) interferometer [50.591267188664666]
The presented interferometer includes a polarization converter between two photon sources and utilizes a continuous-wave (CW) pump. We show that this configuration results in almost perfect destructive interference at the output and supersensitivity regions below the classical limit.
arXiv Detail & Related papers (2020-12-07T14:42:54Z)

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