A Traveling-Wave Parametric Amplifier With Integrated Diplexers

• URL: http://arxiv.org/abs/2603.12327v1
• Date: Thu, 12 Mar 2026 18:00:06 GMT
• Title: A Traveling-Wave Parametric Amplifier With Integrated Diplexers
• Abstract summary: We present a traveling-wave parametric amplifier that incorporates on-chip input and output diplexers for pump routing.<n>This co-fabricated architecture offers a compact and scalable solution for superconducting-circuit readout.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Traveling-Wave Parametric Amplifiers (TWPAs) are ubiquitous in superconducting circuit readout, providing high gain with near-quantum-limited noise performance across a wide bandwidth. Their operation, however, relies on a strong microwave pump tone that is typically delivered using off-chip passive components, such as directional couplers or diplexers. These external elements add loss, increase system complexity, and limit scalability. Here, we present a traveling-wave parametric amplifier that incorporates on-chip input and output diplexers for pump routing. This co-fabricated architecture offers a compact and scalable solution for superconducting-circuit readout.

Related papers

• Phase-stable voltage bias for Josephson photonics devices [58.079925240809644]
  Parametric interactions are foundational to superconducting quantum technologies.<n> Microwave-driven pumping introduces parasitic Kerr nonlinearities and higher-order harmonics that limit device performance.<n>Josephson Photonics avoids these parasitics by utilizing dc-biased junctions.
  arXiv  Detail & Related papers  (2026-09-15T13:31:29Z)
• Compressive Spectrum Sensing via Spectral Multiplexing in Rydberg Atomic Receiver [50.057865570993506]
  Rydberg-atomic receivers exhibit exceptional sensitivity yet are fundamentally constrained by the narrow instantaneous bandwidth.<n>We propose a spectral multiplexing framework implemented in a waveguide-coupled Rydberg atomic receiver.
  arXiv  Detail & Related papers  (2026-07-02T10:38:49Z)
• Flux-Activated Resonant Control of a Bosonic Quantum Memory [63.35373457838474]
  Bosonic circuit quantum electrodynamics (cQED) coherently control long-lived superconducting cavities.<n>We integrate an on-chip flux-control architecture with a long-lived bosonic memory housed in a 3D superconducting cavity.<n>We realize efficient arbitrary rotations between any pair of Fock levels in the memory.
  arXiv  Detail & Related papers  (2026-02-20T10:22:53Z)
• Compact Superconducting Kinetic Inductance Traveling Wave Parametric Amplifiers with On-chip rf Components [0.0]
  We present the design and validation of microfabricated bias tees and directional couplers for operating three-wave mixing kinetic inductance TWPAs.<n>Our device displays a 2.8 GHz 3 dB bandwidth with a median true gain of 17.5 dB and median system noise of 3.4 quanta.
  arXiv  Detail & Related papers  (2025-03-05T15:45:19Z)
• A Traveling-Wave Parametric Amplifier and Converter [0.0]
  In superconducting systems, qubits are typically measured by probing a resonator with a weak microwave tone which must be amplified before reaching the room temperature electronics. Superconducting parametric amplifiers have been widely adopted as the first amplifier in the chain, primarily because of their low noise performance, approaching the quantum limit. Here we demonstrate a parametric amplifier that achieves both broadband forward amplification and backward isolation in a single, compact, non-magnetic circuit that could be integrated on chip with superconducting qubits.
  arXiv  Detail & Related papers  (2024-06-27T18:39:53Z)
• 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)
• Broadband CPW-based impedance-transformed Josephson parametric amplifier [13.002501537530513]
  We present a device based on the broadband impedance-transformed Josephson parametric amplifier (IMPA) The device shows an instantaneous bandwidth of 700(200) MHz for 15(20) dB gain with an average saturation power of -110 dBm and near quantum-limited added noise.
  arXiv  Detail & Related papers  (2023-10-26T01:04:55Z)
• Fully Directional Quantum-limited Phase-Preserving Amplifier [0.0]
  We present a way to achieve fully directional, quantum-limited amplification in a four-port, four-mode superconducting Josephson circuit. Full directionality, defined as the reverse isolation surpassing forward gain between the matched input and output ports of the amplifier, ensures its robustness against impedance mismatch. Unlike existing directional phase-preserving amplifiers, both the minimal back-action and the quantum-limited added noise of this amplifier remains unaffected by noise incident on its output port.
  arXiv  Detail & Related papers  (2023-05-07T04:01:07Z)
• 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)
• 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)
• Superconducting coupler with exponentially large on-off ratio [68.8204255655161]
  Tunable two-qubit couplers offer an avenue to mitigate errors in multiqubit superconducting quantum processors. Most couplers operate in a narrow frequency band and target specific couplings, such as the spurious $ZZ$ interaction. We introduce a superconducting coupler that alleviates these limitations by suppressing all two-qubit interactions with an exponentially large on-off ratio.
  arXiv  Detail & Related papers  (2021-07-21T03:03:13Z)
• Floquet-Mode Traveling-Wave Parametric Amplifiers [2.691339855008848]
  We introduce a new class of amplifiers which encode the information in the Floquet modes of the system. Such Floquet mode amplifiers prevent information leakage and overcome the trade-off between quantum efficiency (QE) and bandwidth.
  arXiv  Detail & Related papers  (2021-04-16T17:54:46Z)
• Waveguide Bandgap Engineering with an Array of Superconducting Qubits [101.18253437732933]
  We experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control. We observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap. The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial.
  arXiv  Detail & Related papers  (2020-06-05T09:27:53Z)

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.