Selective Single and Double-Mode Quantum Limited Amplifier
- URL: http://arxiv.org/abs/2311.11496v2
- Date: Fri, 7 Jun 2024 21:12:23 GMT
- Title: Selective Single and Double-Mode Quantum Limited Amplifier
- Authors: Abdul Mohamed, Elham Zohari, Jarryd J. Pla, Paul E. Barclay, Shabir Barzanjeh,
- Abstract summary: A quantum-limited amplifier enables the amplification of weak signals while introducing minimal noise dictated by the principles of quantum mechanics.
These amplifiers serve a broad spectrum of applications in quantum computing, including fast and accurate readout of superconducting qubits and spins.
We experimentally develop a novel quantum-limited amplifier based on superconducting kinetic inductance.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: A quantum-limited amplifier enables the amplification of weak signals while introducing minimal noise dictated by the principles of quantum mechanics. These amplifiers serve a broad spectrum of applications in quantum computing, including fast and accurate readout of superconducting qubits and spins, as well as various uses in quantum sensing and metrology. Parametric amplification, primarily developed using Josephson junctions, has evolved into the leading technology for highly effective microwave measurements within quantum circuits. Despite their significant contributions, these amplifiers face fundamental limitations, such as their inability to handle high powers, sensitivity to parasitic magnetic fields, and particularly their limitation to operate only at millikelvin temperatures. To tackle these challenges, here we experimentally develop a novel quantum-limited amplifier based on superconducting kinetic inductance and present an extensive theoretical model to describe this nonlinear coupled-mode system. Our device surpasses the conventional constraints associated with Josephson junction amplifiers by operating at much higher temperatures up to 4.5 K. With two distinct spectral modes and tunability through bias current, this amplifier can operate selectively in both single and double-mode amplification regimes near the quantum noise limit. Utilizing a nonlinear thin film exhibiting kinetic inductance, our device attains gain exceeding 50 dB in a single-mode and 32 dB in a double-mode configuration while adding 0.35 input-referred quanta of noise. Importantly, this amplifier eliminates the need for Josephson junctions, resulting in significantly higher power handling capabilities than Josephson-based amplifiers. It also demonstrates resilience in the presence of magnetic fields, offers a straightforward design, and enhances reliability.
Related papers
- Josephson bifurcation readout: beyond the monochromatic approximation [49.1574468325115]
We analyze properties of bifurcation quantum detectors based on weakly nonlinear superconducting resonance circuits.
This circuit can serve as an efficient detector of the quantum state of superconducting qubits.
arXiv Detail & Related papers (2024-05-25T22:22:37Z) - 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) - Three-Wave Mixing Quantum-Limited Kinetic Inductance Parametric
Amplifier operating at 6 Tesla and near 1 Kelvin [0.0]
We introduce and characterize a Kinetic Inductance Parametric Amplifier built using high-quality NbN superconducting thin films.
The KIPA addresses some of the limitations of traditional Josephson-based parametric amplifiers.
We demonstrate a quantum-limited amplification (> 20 dB) with a 20 MHz gain-bandwidth product, operational at fields up to 6 Tesla and temperatures as high as 850 mK.
arXiv Detail & Related papers (2023-12-01T17:37:06Z) - Gate-tunable kinetic inductance parametric amplifier [0.0]
We present a gate-tunable parametric amplifier that operates without Josephson junctions.
This design achieves near-quantum-limited performance, featuring more than 20 dB gain and a 30 MHz gain-bandwidth product.
arXiv Detail & Related papers (2023-08-14T07:54:19Z) - Magnetic field-resilient quantum-limited parametric amplifier [0.0]
NbN nanobridge instead of Josephson Junctions provides desired nonlinearity for a strong parametric gain up to 42 dB.
Noise is preserved in an in-plane magnetic field up to 427 mT, the maximum field available in our experiment.
arXiv Detail & Related papers (2022-09-27T19:37:51Z) - 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) - Directional Josephson traveling-wave parametric amplifier via
non-Hermitian topology [58.720142291102135]
Low-noise microwave amplification is crucial for detecting weak signals in quantum technologies and radio astronomy.
Current amplifiers do not satisfy all these requirements, severely limiting the scalability of superconducting quantum devices.
Here, we demonstrate the feasibility of building a near-ideal quantum amplifier using a homogeneous Josephson junction array and the non-trivial topology of its dynamics.
arXiv Detail & Related papers (2022-07-27T18:07:20Z) - Quantum Dot-Based Parametric Amplifiers [0.0]
Josephson parametric amplifiers (JPAs) approaching quantum-limited noise performance have been instrumental in enabling high fidelity readout of superconducting qubits and, recently, semiconductor quantum dots (QDs)
We propose that the quantum capacitance arising in electronic two-level systems can provide an alternative dissipation-less non-linear element for parametric amplification.
We experimentally demonstrate phase-sensitive parametric amplification using a QD-reservoir electron transition in a CMOS nanowire split-gate transistor embedded in a 1.8GHz superconducting lumped-element microwave cavity.
arXiv Detail & Related papers (2021-11-23T12:40:47Z) - 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) - 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.