Microwave fluorescence detection of spin echoes
- URL: http://arxiv.org/abs/2208.13586v1
- Date: Mon, 29 Aug 2022 13:27:06 GMT
- Title: Microwave fluorescence detection of spin echoes
- Authors: Eric Billaud, Leo Balembois, Marianne Le Dantec, Milos Ran\v{c}i\'c,
Emanuele Albertinale, Sylvain Bertaina, Thierry Chaneli\`ere, Philippe
Goldner, Daniel Est\`eve, Denis Vion, Patrice Bertet, Emmanuel Flurin
- Abstract summary: Counting the microwave photons emitted by an ensemble of electron spins when they relax radiatively has been proposed as a sensitive method for EPR spectroscopy.
Here, we report the detection of spin echoes in the spin fluorescence signal.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Counting the microwave photons emitted by an ensemble of electron spins when
they relax radiatively has recently been proposed as a sensitive method for
electron paramagnetic resonance (EPR) spectroscopy, enabled by the development
of operational Single Microwave Photon Detectors (SMPD) at millikelvin
temperature. Here, we report the detection of spin echoes in the spin
fluorescence signal. The echo manifests itself as a coherent modulation of the
number of photons spontaneously emitted after a $\pi/2_X - \tau - \pi_Y - \tau
- \pi/2_\Phi $ sequence, dependent on the relative phase $\Phi$. We demonstrate
experimentally this detection method using an ensemble of $\mathrm{Er}^{3+}$
ion spins in a scheelite crystal of $\mathrm{CaWO}_4$. We use
fluorescence-detected echoes to measure the erbium spin coherence time, as well
as the echo envelope modulation due to the coupling to the $^{183}\mathrm{W}$
nuclear spins surrounding each ion. We finally compare the signal-to-noise
ratio of inductively-detected and fluorescence-detected echoes, and show that
it is larger with the fluorescence method.
Related papers
- Wigner-function formalism for the detection of single microwave pulses in a resonator-coupled double quantum dot [0.0]
We theoretically analyze the photodetection of single microwave pulses.
We find a trade-off between detecting the time and the frequency of the incoming photons in agreement with the time-energy uncertainty relation.
Our findings give insight into the time-dependent properties of microwave photons interacting with electrons in a DQD-resonator hybrid system.
arXiv Detail & Related papers (2024-10-18T08:35:42Z) - Electron Paramagnetic Resonance spectroscopy of a scheelite crystal
using microwave photon counting [0.0]
Counting the microwave photons emitted by an ensemble of electron spins when they relax radiatively has been introduced as a sensitive new method for electron paramagnetic resonance spectroscopy at millikelvin temperatures.
Here, we apply this spin fluorescence method to a scheelite crystal of CaWO4.
arXiv Detail & Related papers (2024-02-05T15:30:56Z) - Measurement of small photon numbers in circuit QED resonators [42.01857709446569]
Off-resonant interaction of fluctuating photons in a resonator with a qubit increases the qubit dephasing rate.
We use this effect to measure a small average number of intracavity photons that are coherently or thermally driven.
arXiv Detail & Related papers (2023-10-25T02:40:56Z) - Probing Strong Coupling between a Microwave Cavity and a Spin Ensemble
with Raman Heterodyne Spectroscopy [0.0]
Raman heterodyne spectroscopy is used to probe an isotopically purified ensemble of erbium dopants.
Because the erbium electron spin transition is strongly coupled to the microwave cavity, we observed Raman heterodyne signals at the resonant frequencies of the hybrid spin-cavity modes.
arXiv Detail & Related papers (2021-05-12T01:14:39Z) - Calibration of Spin-Light Coupling by Coherently Induced Faraday
Rotation [0.0]
Calibrating the strength of the light-matter interaction is an important experimental task in quantum information and quantum state engineering protocols.
Here we utilize the Coherently Induced Faraday Rotation (CIFAR) signal for determining the coupling rate.
arXiv Detail & Related papers (2021-03-22T11:10:47Z) - Detecting spins with a microwave photon counter [0.0]
We demonstrate the detection of a small ensemble of donor spins in silicon by their fluorescence at microwave frequency and millikelvin temperatures.
We discuss the potential of fluorescence detection as a novel method for magnetic resonance spectroscopy of small numbers of spins.
arXiv Detail & Related papers (2021-02-02T10:12:48Z) - Auto-heterodyne characterization of narrow-band photon pairs [68.8204255655161]
We describe a technique to measure photon pair joint spectra by detecting the time-correlation beat note when non-degenerate photon pairs interfere at a beamsplitter.
The technique is well suited to characterize pairs of photons, each of which can interact with a single atomic species.
arXiv Detail & Related papers (2021-01-08T18:21:30Z) - $\mathcal{P}$,$\mathcal{T}$-odd effects for RaOH molecule in the excited
vibrational state [77.34726150561087]
Triatomic molecule RaOH combines the advantages of laser-coolability and the spectrum with close opposite-parity doublets.
We obtain the rovibrational wave functions of RaOH in the ground electronic state and excited vibrational state using the close-coupled equations derived from the adiabatic Hamiltonian.
arXiv Detail & Related papers (2020-12-15T17:08:33Z) - Photon Condensation and Enhanced Magnetism in Cavity QED [68.8204255655161]
A system of magnetic molecules coupled to microwave cavities undergoes the equilibrium superradiant phase transition.
The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model.
A transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.
arXiv Detail & Related papers (2020-11-07T11:18:24Z) - Resonant high-energy bremsstrahlung of ultrarelativistic electrons in
the field of a nucleus and a pulsed light wave [68.8204255655161]
Research investigates the resonant high-energy spontaneous bremsstrahlung of ultrarelativistic electrons with considerable energies in the field of a nucleus and a quasimonochromatic laser wave.
arXiv Detail & Related papers (2020-04-05T16:27:11Z) - Optical Magnetometer: Quantum Resonances at pumping repetition rate of
1/n of the Larmor frequency [58.720142291102135]
Quantum sub-resonances at a repetition rate of $1/n$ of the Larmor frequency of the magnetic field inside the shield are experimentally observed and theoretically explained.
Investigations in single alkali atoms cells as well as mixed alkali atoms of K and Rb are presented.
arXiv Detail & Related papers (2020-02-20T09:14:56Z)
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.