Characterizing cryogenic amplifiers with a matched temperature-variable noise source

• URL: http://arxiv.org/abs/2009.03010v2
• Date: Thu, 25 Feb 2021 15:53:45 GMT
• Title: Characterizing cryogenic amplifiers with a matched temperature-variable noise source
• Authors: Slawomir Simbierowicz, Visa Vesterinen, Joshua Milem, Aleksi Lintunen, Mika Oksanen, Leif Roschier, Leif Gr\"onberg, Juha Hassel, David Gunnarsson, and Russell E. Lake
• Abstract summary: We present a cryogenic microwave noise source with a characteristic impedance of 50 $Omega$, which can be installed in a coaxial line of a cryostat. The bath temperature of the noise source is continuously variable between 0.1 K and 5 K without causing significant back-action heating on the sample space. We observe system noise temperatures as low as $680+20_-200$ mK at 5.7 GHz corresponding to $1.5+0.1_-0.7$ excess photons.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present a cryogenic microwave noise source with a characteristic impedance of 50 $\Omega$, which can be installed in a coaxial line of a cryostat. The bath temperature of the noise source is continuously variable between 0.1 K and 5 K without causing significant back-action heating on the sample space. As a proof-of-concept experiment, we perform Y-factor measurements of an amplifier cascade that includes a traveling wave parametric amplifier and a commercial high electron mobility transistor amplifier. We observe system noise temperatures as low as $680^{+20}_{-200}$ mK at 5.7 GHz corresponding to $1.5^{+0.1}_{-0.7}$ excess photons. The system we present has immediate applications in the validation of solid-state qubit readout lines.

Related papers

• Calibration of the Cryogenic Measurement System of a Resonant Haloscope Cavity [15.693238765961619]
  We demonstrate a 7.138 GHz copper cavity with a loaded quality factor $Q_l=104$, operated at 22 mK temperature based on a dilution refrigerator. Our readout system consists of High Electron Mobility Transistors as cryogenic amplifiers at 4 K, plus room-temperature amplifiers and a spectrum analyzer for signal power detection.
  arXiv  Detail & Related papers  (2024-04-16T03:34:39Z)
• Cryogenic resonant amplifier for electron-on-helium image charge readout [0.0]
  A hybrid Rydberg-spin qubit seems to be a promising one towards quantum computing using electron spins. The main technological challenge is a detection of fA range image current induced by Rydberg transition of a single electron. Here, we report our progress towards realization of a resonant image current detector with a home-made cryogenic amplifier.
  arXiv  Detail & Related papers  (2023-11-08T03:14:39Z)
• Radiatively-cooled quantum microwave amplifiers [2.7694182767450455]
  We demonstrate a quantum microwave amplifier that employs radiative cooling to operate at elevated temperatures. This work represents an important step for realizing scalable microwave quantum technologies.
  arXiv  Detail & Related papers  (2023-08-04T02:01:40Z)
• An anti-maser for quantum-limited cooling of a microwave cavity [58.720142291102135]
  We experimentally demonstrate how to generate a state in condensed matter at moderate cryogenic temperatures. This state is then used to efficiently remove microwave photons from a cavity. Such an "anti-maser" device could be extremely beneficial for applications that would normally require cooling to millikelvin temperatures.
  arXiv  Detail & Related papers  (2023-07-24T11:12:29Z)
• A highly-sensitive broadband superconducting thermoelectric single-photon detector [62.997667081978825]
  A thermoelectric detector (TED) converts a finite temperature difference caused by the absorption of a single photon into an open circuit thermovoltage. Our TED is able to reveal single-photons of frequency ranging from about 15 GHz to about 150 PHz depending on the chosen design and materials.
  arXiv  Detail & Related papers  (2023-02-06T17:08:36Z)
• 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)
• Steady-state microwave mode cooling with a diamond NV ensemble [1.1545092788508224]
  An electromagnetic mode with frequency $omega$ in the microwave band has a significant thermal photon occupation at room temperature. This variance sets the measurement noise floor in applications ranging from wireless communications to positioning, navigation, and timing to magnetic resonance imaging. We overcome this barrier in continuously cooling a $sim 3$ GHz cavity mode by coupling it to an ensemble of optically spin-polarized nitrogen-vacancy centers in a room-temperature diamond.
  arXiv  Detail & Related papers  (2022-03-07T15:25:24Z)
• Time-correlated Photons from a In$_{0.5}$Ga$_{0.5}$P Photonic Crystal Cavity on a Silicon Chip [55.41644538483948]
  Time-correlated photon pairs are generated by triply-resonant Four-Wave-Mixing in a In$_0.5$Ga$_0.5$P Photonic Crystal cavitiy. The generation rate reaches 5 MHz in cavities with Q-factor $approx 4times 104$, more than one order of magnitude larger than what is measured using ring resonators with similar Q factors fabricated on the same chip.
  arXiv  Detail & Related papers  (2022-02-19T15:22:06Z)
• Rapid generation of all-optical $^{39}$K Bose-Einstein condensates using a low-field Feshbach resonance [58.720142291102135]
  We investigate the production of all-optical $39$K Bose-Einstein condensates with different scattering lengths using a Feshbach resonance near $33$ G. We are able to produce fully condensed ensembles with $5.8times104$ atoms within $850$ ms evaporation time at a scattering length of $232. Based on our findings we describe routes towards high-flux sources of ultra-cold potassium for inertial sensing.
  arXiv  Detail & Related papers  (2022-01-12T16:39:32Z)
• Emission of photon multiplets by a dc-biased superconducting circuit [0.0]
  We observe the emission of bunches of $k geqslant 1$ photons by a circuit made of a microwave resonator in series with a voltage-biased tunable Josephson junction. The bunches are emitted at specific values $V_k$ of the bias voltage, for which each Cooper pair tunneling across the junction creates exactly k photons in the resonator.
  arXiv  Detail & Related papers  (2021-11-18T10:12:59Z)
• Measurement of the Low-temperature Loss Tangent of High-resistivity Silicon with a High Q-factor Superconducting Resonator [58.720142291102135]
  We present the direct loss tangent measurement of a high-resist intrinsicivity (100) silicon wafer in the temperature range from 70 mK to 1 K. The measurement was performed using a technique that takes advantage of a high quality factor superconducting niobium resonator.
  arXiv  Detail & Related papers  (2021-08-19T20:13:07Z)

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.