Quantum metrology of low frequency electromagnetic modes with frequency upconverters
arXiv:2210.05576 · doi:10.1103/PhysRevResearch.7.013281
Abstract
We present the RF Quantum Upconverter (RQU) and describe its application to quantum metrology of electromagnetic modes between dc and the Very High Frequency band (VHF) (300MHz). The RQU uses a Josephson interferometer made up of superconducting loops and Josephson junctions to implement a parametric interaction between a low-frequency electromagnetic mode (between dc and VHF) and a mode in the microwave C Band ( 5GHz), analogous to the radiation pressure interaction between electromagnetic and mechanical modes in cavity optomechanics. We analyze RQU performance with quantum amplifier theory, and show that the RQU can operate as a quantum-limited op-amp in this frequency range. It can also use non-classical measurement protocols equivalent to those used in cavity optomechanics, including back-action evading (BAE) measurements, sideband cooling, and two-mode squeezing. These protocols enable experiments using dc--VHF electromagnetic modes as quantum sensors with sensitivity better than the Standard Quantum Limit (SQL). We demonstrate signal upconversion from low frequencies to microwave C band using an RQU and show a phase-sensitive gain (extinction ratio) of \;dB, which is a necessary step towards the realization of full BAE.
-minor rewording and clarification of arguments in abstract, introduction, and conclusion -added discussion and citations for related devices in Section IIA -renamed section II C to Quantum Amplifier Theory -added discussion of Kerr nonlinearity in II C -V3: responded to reviewer feedback, mainly minor clarifications and additions, but added further details to section on Backaction Evasion
References in corpus (24)
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Cavity Optomechanics
- Coherent control of macroscopic quantum states in a single-Cooper-pair box
- Introduction to Quantum Noise, Measurement and Amplification
- Quantum information processing with circuit quantum electrodynamics
- Amplification and squeezing of quantum noise with a tunable Josephson metamaterial
- A quantum memory with near-millisecond coherence in circuit QED
- Back-action evasion and squeezing of a mechanical resonator using a cavity detector
- Quantum Non-demolition Detection of Single Microwave Photons in a Circuit
- First Results from ABRACADABRA-10 cm: A Search for Sub-eV Axion Dark Matter
- Exponential suppression of bit-flips in a qubit encoded in an oscillator
- Microwave Photon Counter Based on Josephson Junctions
- A Radio for Hidden-Photon Dark Matter Detection
- Introduction to Quantum-limited Parametric Amplification of Quantum Signals with Josephson Circuits
- Phase detection at the quantum limit with multi-photon Mach-Zehnder interferometry
- ADMX SLIC: Results from a Superconducting LC Circuit Investigating Cold Axions
- Search for axion-like dark matter using solid-state nuclear magnetic resonance
- RF bifurcation of a Josephson junction: microwave embedding circuit requirements
- The Cosmic Axion Spin Precession Experiment (CASPEr): a dark-matter search with nuclear magnetic resonance
- Introducing DMRadio-GUT, a search for GUT-scale QCD axions
- Quantum limited amplification with a nonlinear cavity detector
- Observation and stabilization of photonic Fock states in a hot radio-frequency resonator
- A dispersive nanoSQUID magnetometer for ultra-low noise, high bandwidth flux detection
- First results from the WISPDMX radio frequency cavity searches for hidden photon dark matter