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Title: Protecting superconducting qubits from phonon mediated decay

Abstract

For quantum computing to become fault tolerant, the underlying quantum bits must be effectively isolated from the noisy environment. It is well known that including an electromagnetic bandgap around the qubit operating frequency improves coherence for superconducting circuits. However, investigations of bandgaps to other environmental coupling mechanisms remain largely unexplored. We present a method to enhance the coherence of superconducting circuits by introducing a phononic bandgap around the device operating frequency. The phononic bandgaps block resonant decay of defect states within the gapped frequency range, removing the electromagnetic coupling to phonons at the gap frequencies. We construct a multiscale model that derives the decrease in the density of states due to the bandgap and the resulting increase in defect state T 1 times. We demonstrate that emission rates from in-plane defect states can be suppressed by up to two orders of magnitude. We combine these simulations with theory for resonators operating in the continuous-wave regime and show that improvements in quality factors are expected by up to the enhancement in defect T 1 times. Furthermore, we use full master equation simulation to demonstrate the suppression of qubit energy relaxation even when interacting with 200 defect states. We conclude with anmore » exploration of device implementation including tradeoffs between fabrication complexity and qubit performance.« less

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE; LLNL Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1515351
Alternate Identifier(s):
OSTI ID: 1515576
Report Number(s):
LLNL-JRNL-760620
Journal ID: ISSN 0003-6951; 948847
Grant/Contract Number:  
AC52-07NA27344; 18-FS-036
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 20; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; semiconductors; band gap; quantum computing; superconductivity; multiscale methods; dielectric properties; phonons; metamaterials; electrical properties and parameters; quantum optics

Citation Formats

Rosen, Yaniv J., Horsley, Matthew A., Harrison, Sara E., Holland, Eric T., Chang, Allan S., Bond, Tiziana, and DuBois, Jonathan L. Protecting superconducting qubits from phonon mediated decay. United States: N. p., 2019. Web. doi:10.1063/1.5096182.
Rosen, Yaniv J., Horsley, Matthew A., Harrison, Sara E., Holland, Eric T., Chang, Allan S., Bond, Tiziana, & DuBois, Jonathan L. Protecting superconducting qubits from phonon mediated decay. United States. doi:10.1063/1.5096182.
Rosen, Yaniv J., Horsley, Matthew A., Harrison, Sara E., Holland, Eric T., Chang, Allan S., Bond, Tiziana, and DuBois, Jonathan L. Thu . "Protecting superconducting qubits from phonon mediated decay". United States. doi:10.1063/1.5096182.
@article{osti_1515351,
title = {Protecting superconducting qubits from phonon mediated decay},
author = {Rosen, Yaniv J. and Horsley, Matthew A. and Harrison, Sara E. and Holland, Eric T. and Chang, Allan S. and Bond, Tiziana and DuBois, Jonathan L.},
abstractNote = {For quantum computing to become fault tolerant, the underlying quantum bits must be effectively isolated from the noisy environment. It is well known that including an electromagnetic bandgap around the qubit operating frequency improves coherence for superconducting circuits. However, investigations of bandgaps to other environmental coupling mechanisms remain largely unexplored. We present a method to enhance the coherence of superconducting circuits by introducing a phononic bandgap around the device operating frequency. The phononic bandgaps block resonant decay of defect states within the gapped frequency range, removing the electromagnetic coupling to phonons at the gap frequencies. We construct a multiscale model that derives the decrease in the density of states due to the bandgap and the resulting increase in defect state T1 times. We demonstrate that emission rates from in-plane defect states can be suppressed by up to two orders of magnitude. We combine these simulations with theory for resonators operating in the continuous-wave regime and show that improvements in quality factors are expected by up to the enhancement in defect T1 times. Furthermore, we use full master equation simulation to demonstrate the suppression of qubit energy relaxation even when interacting with 200 defect states. We conclude with an exploration of device implementation including tradeoffs between fabrication complexity and qubit performance.},
doi = {10.1063/1.5096182},
journal = {Applied Physics Letters},
number = 20,
volume = 114,
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
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This content will become publicly available on May 23, 2020
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Works referenced in this record:

Projected Dipole Moments of Individual Two-Level Defects Extracted Using Circuit Quantum Electrodynamics
journal, April 2016


Spontaneous emission rate of an electric dipole in a general microcavity
journal, August 1999


Observation of directly interacting coherent two-level systems in an amorphous material
journal, February 2015

  • Lisenfeld, Jürgen; Grabovskij, Grigorij J.; Müller, Clemens
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms7182

Improving the quality factor of microwave compact resonators by optimizing their geometrical parameters
journal, May 2012

  • Geerlings, K.; Shankar, S.; Edwards, E.
  • Applied Physics Letters, Vol. 100, Issue 19
  • DOI: 10.1063/1.4710520

Etch induced microwave losses in titanium nitride superconducting resonators
journal, June 2012

  • Sandberg, Martin; Vissers, Michael R.; Kline, Jeffrey S.
  • Applied Physics Letters, Vol. 100, Issue 26
  • DOI: 10.1063/1.4729623

Two-level states in glasses
journal, December 1987


Loss Mechanisms and Quasiparticle Dynamics in Superconducting Microwave Resonators Made of Thin-Film Granular Aluminum
journal, September 2018


Landau-Zener population control and dipole measurement of a two-level-system bath
journal, September 2014


Anomalous avoided level crossings in a Cooper-pair box spectrum
journal, October 2008


Planar superconducting resonators with internal quality factors above one million
journal, March 2012

  • Megrant, A.; Neill, C.; Barends, R.
  • Applied Physics Letters, Vol. 100, Issue 11
  • DOI: 10.1063/1.3693409

Bulk and surface loss in superconducting transmon qubits
journal, March 2016


Origin and Reduction of 1 / f Magnetic Flux Noise in Superconducting Devices
journal, October 2016


Study of loss in superconducting coplanar waveguide resonators
journal, March 2011

  • Sage, Jeremy M.; Bolkhovsky, Vladimir; Oliver, William D.
  • Journal of Applied Physics, Vol. 109, Issue 6
  • DOI: 10.1063/1.3552890

Three-dimensionally periodic dielectric layered structure with omnidirectional photonic band gap
journal, November 2000

  • Johnson, Steven G.; Joannopoulos, J. D.
  • Applied Physics Letters, Vol. 77, Issue 22, p. 3490-3492
  • DOI: 10.1063/1.1328369

Hydrogen bonds in Al2O3 as dissipative two-level systems in superconducting qubits
journal, December 2014

  • Gordon, Luke; Abu-Farsakh, Hazem; Janotti, Anderson
  • Scientific Reports, Vol. 4, Issue 1
  • DOI: 10.1038/srep07590

Design of optomechanical cavities and waveguides on a simultaneous bandgap phononic-photonic crystal slab
journal, January 2010

  • Safavi-Naeini, Amir H.; Painter, Oskar
  • Optics Express, Vol. 18, Issue 14
  • DOI: 10.1364/OE.18.014926

Reducing intrinsic loss in superconducting resonators by surface treatment and deep etching of silicon substrates
journal, May 2015

  • Bruno, A.; de Lange, G.; Asaad, S.
  • Applied Physics Letters, Vol. 106, Issue 18
  • DOI: 10.1063/1.4919761

Two-Dimensional Phononic-Photonic Band Gap Optomechanical Crystal Cavity
journal, April 2014


Decay of an atom coupled strongly to a reservoir
journal, June 1997


Jaynes-Cummings treatment of superconducting resonators with dielectric loss due to two-level systems
journal, September 2011


Bulk and Surface Tunneling Hydrogen Defects in Alumina
journal, August 2013


Magnetic stability of oxygen defects on the SiO 2 surface
journal, February 2017

  • Adelstein, Nicole; Lee, Donghwa; DuBois, Jonathan L.
  • AIP Advances, Vol. 7, Issue 2
  • DOI: 10.1063/1.4977194

Surface participation and dielectric loss in superconducting qubits
journal, October 2015

  • Wang, C.; Axline, C.; Gao, Y. Y.
  • Applied Physics Letters, Vol. 107, Issue 16
  • DOI: 10.1063/1.4934486

Suspending superconducting qubits by silicon micromachining
journal, September 2016

  • Chu, Y.; Axline, C.; Wang, C.
  • Applied Physics Letters, Vol. 109, Issue 11
  • DOI: 10.1063/1.4962327

Nonlinear Quantum Optomechanics via Individual Intrinsic Two-Level Defects
journal, May 2013


Surface loss simulations of superconducting coplanar waveguide resonators
journal, September 2011

  • Wenner, J.; Barends, R.; Bialczak, R. C.
  • Applied Physics Letters, Vol. 99, Issue 11
  • DOI: 10.1063/1.3637047

Fabrication artifacts and parallel loss channels in metamorphic epitaxial aluminum superconducting resonators
journal, April 2016


Demonstrating a Driven Reset Protocol for a Superconducting Qubit
journal, March 2013


Dynamic visualization of surface acoustic waves on a two-dimensional phononic crystal
journal, July 2009


Microfabricated phononic crystal devices and applications
journal, November 2008


Three-dimensional photonic crystals fabricated by simultaneous multidirectional etching
journal, April 2015