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Title: Collective strong coupling with homogeneous Rabi frequencies using a 3D lumped element microwave resonator

Abstract

We design and implement 3D-lumped element microwave cavities that spatially focus magnetic fields to a small mode volume. They allow coherent and uniform coupling to electron spins hosted by nitrogen vacancy centers in diamond. We achieve large homogeneous single spin coupling rates, with an enhancement of more than one order of magnitude compared to standard 3D cavities with a fundamental resonance at 3 GHz. Finite element simulations confirm that the magnetic field distribution is homogeneous throughout the entire sample volume, with a root mean square deviation of 1.54%. With a sample containing 10{sup 17} nitrogen vacancy electron spins, we achieve a collective coupling strength of Ω = 12 MHz, a cooperativity factor C = 27, and clearly enter the strong coupling regime. This allows to interface a macroscopic spin ensemble with microwave circuits, and the homogeneous Rabi frequency paves the way to manipulate the full ensemble population in a coherent way.

Authors:
; ; ;  [1];  [2];  [3];  [4];  [1];  [5]
  1. Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Stadionallee 2, 1020 Vienna (Austria)
  2. Sumitomo Electric Industries Ltd., Itami 664-001 (Japan)
  3. Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan)
  4. Research Centre for Knowledge Communities, University of Tsukuba, 1-2 Kasuga, Tsukuba, Ibaraki 305-8550 (Japan)
  5. (United States)
Publication Date:
OSTI Identifier:
22594427
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 3; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; COUPLING; DIAMONDS; ELECTRONS; FINITE ELEMENT METHOD; GHZ RANGE 01-100; MAGNETIC FIELDS; MICROWAVE RADIATION; NITROGEN; RESONATORS; SPIN; STRONG-COUPLING MODEL; THREE-DIMENSIONAL CALCULATIONS; VACANCIES

Citation Formats

Angerer, Andreas, E-mail: andreas.angerer@tuwien.ac.at, Astner, Thomas, Wirtitsch, Daniel, Majer, Johannes, E-mail: johannes.majer@tuwien.ac.at, Sumiya, Hitoshi, Onoda, Shinobu, Isoya, Junichi, Putz, Stefan, and Department of Physics, Princeton University, Princeton, New Jersey 08544. Collective strong coupling with homogeneous Rabi frequencies using a 3D lumped element microwave resonator. United States: N. p., 2016. Web. doi:10.1063/1.4959095.
Angerer, Andreas, E-mail: andreas.angerer@tuwien.ac.at, Astner, Thomas, Wirtitsch, Daniel, Majer, Johannes, E-mail: johannes.majer@tuwien.ac.at, Sumiya, Hitoshi, Onoda, Shinobu, Isoya, Junichi, Putz, Stefan, & Department of Physics, Princeton University, Princeton, New Jersey 08544. Collective strong coupling with homogeneous Rabi frequencies using a 3D lumped element microwave resonator. United States. doi:10.1063/1.4959095.
Angerer, Andreas, E-mail: andreas.angerer@tuwien.ac.at, Astner, Thomas, Wirtitsch, Daniel, Majer, Johannes, E-mail: johannes.majer@tuwien.ac.at, Sumiya, Hitoshi, Onoda, Shinobu, Isoya, Junichi, Putz, Stefan, and Department of Physics, Princeton University, Princeton, New Jersey 08544. 2016. "Collective strong coupling with homogeneous Rabi frequencies using a 3D lumped element microwave resonator". United States. doi:10.1063/1.4959095.
@article{osti_22594427,
title = {Collective strong coupling with homogeneous Rabi frequencies using a 3D lumped element microwave resonator},
author = {Angerer, Andreas, E-mail: andreas.angerer@tuwien.ac.at and Astner, Thomas and Wirtitsch, Daniel and Majer, Johannes, E-mail: johannes.majer@tuwien.ac.at and Sumiya, Hitoshi and Onoda, Shinobu and Isoya, Junichi and Putz, Stefan and Department of Physics, Princeton University, Princeton, New Jersey 08544},
abstractNote = {We design and implement 3D-lumped element microwave cavities that spatially focus magnetic fields to a small mode volume. They allow coherent and uniform coupling to electron spins hosted by nitrogen vacancy centers in diamond. We achieve large homogeneous single spin coupling rates, with an enhancement of more than one order of magnitude compared to standard 3D cavities with a fundamental resonance at 3 GHz. Finite element simulations confirm that the magnetic field distribution is homogeneous throughout the entire sample volume, with a root mean square deviation of 1.54%. With a sample containing 10{sup 17} nitrogen vacancy electron spins, we achieve a collective coupling strength of Ω = 12 MHz, a cooperativity factor C = 27, and clearly enter the strong coupling regime. This allows to interface a macroscopic spin ensemble with microwave circuits, and the homogeneous Rabi frequency paves the way to manipulate the full ensemble population in a coherent way.},
doi = {10.1063/1.4959095},
journal = {Applied Physics Letters},
number = 3,
volume = 109,
place = {United States},
year = 2016,
month = 7
}
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