Joe Britton
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Joe Britton has a total of 424 co-authors. Here are the top co-authors by number of shared publications:
D. J. Wineland
Time and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305, USA
34 shared publicationsD. Leibfried
Time and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305, USA
33 shared publicationsC. Langer
32 shared publicationsW. M. Itano
National Institute of Standards and Technology, Boulder, CO
26 shared publicationsJ. D. Jost
24 shared publicationsR. Ozeri
22 shared publications
Latest Publications
- 17 March 2026
- Published by American Physical Society (APS) in Physical Review Applied
- Vol. 25 (3)
bifrost: A first-principles model of polarization mode dispersion in optical fiber
- 17 March 2026
- Published by American Physical Society (APS) in Physical Review Applied
- Vol. 25 (3)
bifrost: A first-principles model of polarization mode dispersion in optical fiber
- Open Access
- 19 December 2022
- Published by Polish Academy of Sciences Chancellery in International Journal of Electronics and Telecommunications
- Vol. 68 (4) , 761-766
Sampler – Open-Source Data Acquisition Module for Quantum Physics
The Sinara hardware platform is a modular, opensource measurement and control system dedicated to quantum applications that require hard real-time performance. The hardware is controlled and managed by the ARTIQ, open-source software that provides nanosecond timing resolution and submicrosecond latency. The Sampler is a general-purpose precision ADC sampling unit with programmable gain and configurable interface. It is used in numerous applications like laser frequency and intensity servo. This paper presents the Sampler module construction and obtained characteristics.
- 19 December 2022
- Published by Polish Academy of Sciences Chancellery in International Journal of Electronics and Telecommunications
- Vol. 68 (4) , 761-766
Open AccessSampler – Open-Source Data Acquisition Module for Quantum Physics
The Sinara hardware platform is a modular, opensource measurement and control system dedicated to quantum applications that require hard real-time performance. The hardware is controlled and managed by the ARTIQ, open-source software that provides nanosecond timing resolution and submicrosecond latency. The Sampler is a general-purpose precision ADC sampling unit with programmable gain and configurable interface. It is used in numerous applications like laser frequency and intensity servo. This paper presents the Sampler module construction and obtained characteristics.
- Open Access
- 1 November 2022
- Published by AIP Publishing in AIP Advances
- Vol. 12 (11) , 115315
Resolved-sideband micromotion sensing in Yb+ on the 935 nm repump transition
Ions displaced from the potential minimum in an RF Paul trap exhibit excess micromotion. A host of well-established techniques are routinely used to sense (and null) this excessive motion in applications ranging from quantum computing to atomic clocks. The rich atomic structure of Yb+, a heavy ion, includes low-lying 2D3/2 states that must be repumped to permit Doppler cooling, typically using a 935 nm laser coupled to the 3D[3/2]1/2 states. In this article, we demonstrate the use of this transition to make resolved-sideband measurements of 3D micromotion in 172Yb+ and 171Yb+ ions. Relative to other sensing techniques, our approach has very low technical overhead and is distinctively compatible with surface-electrode ion traps.
- 1 November 2022
- Published by AIP Publishing in AIP Advances
- Vol. 12 (11) , 115315
Open AccessResolved-sideband micromotion sensing in Yb+ on the 935 nm repump transition
Ions displaced from the potential minimum in an RF Paul trap exhibit excess micromotion. A host of well-established techniques are routinely used to sense (and null) this excessive motion in applications ranging from quantum computing to atomic clocks. The rich atomic structure of Yb+, a heavy ion, includes low-lying 2D3/2 states that must be repumped to permit Doppler cooling, typically using a 935 nm laser coupled to the 3D[3/2]1/2 states. In this article, we demonstrate the use of this transition to make resolved-sideband measurements of 3D micromotion in 172Yb+ and 171Yb+ ions. Relative to other sensing techniques, our approach has very low technical overhead and is distinctively compatible with surface-electrode ion traps.
- 1 January 2020
- Published by Optica Publishing Group
- p. QW6A.12
On the Direct Generation of Ion-Photon Entanglement at Telecom Wavelengths in 171Yb+
We explore entanglement between 171Yb+ ion and photon polarization at 1350 and 1650 nm. A cavity-mediated Raman interaction increases IR photon generation and collection. Driving S-D quadrupole transition maps coherences to the long-lived qubit.
- 1 January 2020
- Published by Optica Publishing Group
- p. QW6A.12
On the Direct Generation of Ion-Photon Entanglement at Telecom Wavelengths in 171Yb+
We explore entanglement between 171Yb+ ion and photon polarization at 1350 and 1650 nm. A cavity-mediated Raman interaction increases IR photon generation and collection. Driving S-D quadrupole transition maps coherences to the long-lived qubit.
- 24 October 2019
- Published by American Physical Society (APS) in Physical Review A
- Vol. 100 (4) , 043417
Stroboscopic approach to trapped-ion quantum information processing with squeezed phonons
In trapped-ion quantum information processing, interactions between spins (qubits) are mediated by collective modes of motion of an ion crystal. While there are many different experimental strategies to design such interactions, they all face both technical and fundamental limitations to the achievable coherent interaction strength. In general, obtaining strong interactions and fast gates is an ongoing challenge. Here, we extend previous work [W. Ge, B. C. Sawyer, J. W. Britton, K. Jacobs, J. J. Bollinger, and M. Foss-Feig, Phys. Rev. Lett. 122, 030501 (2019)] and present a general strategy for enhancing the interaction strengths in trapped-ion systems via parametric amplification of the ions' motion. Specifically, we propose a stroboscopic protocol using alternating applications of parametric amplification and spin-motion coupling. In comparison with the previous work, we show that the current protocol can lead to larger enhancements in the coherent interaction that increase exponentially with the gate time.
- 24 October 2019
- Published by American Physical Society (APS) in Physical Review A
- Vol. 100 (4) , 043417
Stroboscopic approach to trapped-ion quantum information processing with squeezed phonons
In trapped-ion quantum information processing, interactions between spins (qubits) are mediated by collective modes of motion of an ion crystal. While there are many different experimental strategies to design such interactions, they all face both technical and fundamental limitations to the achievable coherent interaction strength. In general, obtaining strong interactions and fast gates is an ongoing challenge. Here, we extend previous work [W. Ge, B. C. Sawyer, J. W. Britton, K. Jacobs, J. J. Bollinger, and M. Foss-Feig, Phys. Rev. Lett. 122, 030501 (2019)] and present a general strategy for enhancing the interaction strengths in trapped-ion systems via parametric amplification of the ions' motion. Specifically, we propose a stroboscopic protocol using alternating applications of parametric amplification and spin-motion coupling. In comparison with the previous work, we show that the current protocol can lead to larger enhancements in the coherent interaction that increase exponentially with the gate time.
- 27 June 2016
- Published by American Physical Society (APS) in Physical Review A
- Vol. 93 (6) , 062511
Vibration-induced field fluctuations in a superconducting magnet
Superconducting magnets enable precise control of nuclear and electron spins, and are used in experiments that explore biological and condensed-matter systems, and fundamental atomic particles. In high-precision applications, a common view is that slow drift of the homogeneous magnetic-field limits control and measurement precision. We report on previously undocumented higher-frequency field noise (10–200 Hz) that limits the coherence time of electron-spin qubits in the field of a superconducting magnet. We measure a spin-echo coherence time of for the electron-spin resonance at , limited by part-per-billion fractional fluctuations in the magnet's homogeneous field. Vibration isolation of the magnet improved to ms.- 27 June 2016
- Published by American Physical Society (APS) in Physical Review A
- Vol. 93 (6) , 062511
Vibration-induced field fluctuations in a superconducting magnet
Superconducting magnets enable precise control of nuclear and electron spins, and are used in experiments that explore biological and condensed-matter systems, and fundamental atomic particles. In high-precision applications, a common view is that slow drift of the homogeneous magnetic-field limits control and measurement precision. We report on previously undocumented higher-frequency field noise (10–200 Hz) that limits the coherence time of electron-spin qubits in the field of a superconducting magnet. We measure a spin-echo coherence time of for the electron-spin resonance at , limited by part-per-billion fractional fluctuations in the magnet's homogeneous field. Vibration isolation of the magnet improved to ms.- Open Access
- 12 January 2015
- Published by American Physical Society (APS) in Physical Review A
- Vol. 91 (1) , 011401
Reversing hydride-ion formation in quantum-information experiments withWe demonstrate photodissociation of ions within a Coulomb crystal of thousands of ions confined in a Penning trap. Because ions are created via exothermic reactions between trapped, laser-cooled and background within the vacuum chamber, they represent a major contaminant species responsible for infidelities in large-scale trapped-ion quantum-information experiments. The rotational-state-insensitive dissociation scheme described here makes use of 157-nm photons to produce and H as products, thereby restoring ions without the need for reloading. This technique facilitates longer experiment runtimes at a given background pressure and may be adapted for removal of and impurities.- 12 January 2015
- Published by American Physical Society (APS) in Physical Review A
- Vol. 91 (1) , 011401
Open AccessReversing hydride-ion formation in quantum-information experiments withWe demonstrate photodissociation of ions within a Coulomb crystal of thousands of ions confined in a Penning trap. Because ions are created via exothermic reactions between trapped, laser-cooled and background within the vacuum chamber, they represent a major contaminant species responsible for infidelities in large-scale trapped-ion quantum-information experiments. The rotational-state-insensitive dissociation scheme described here makes use of 157-nm photons to produce and H as products, thereby restoring ions without the need for reloading. This technique facilitates longer experiment runtimes at a given background pressure and may be adapted for removal of and impurities. - 1 October 2014
- Published by IOP Publishing in Journal of Cosmology and Astroparticle Physics
- Vol. 2014 (10) , 007
The Atacama Cosmology Telescope: CMB polarization at 200 < ℓ < 9000
- 1 October 2014
- Published by IOP Publishing in Journal of Cosmology and Astroparticle Physics
- Vol. 2014 (10) , 007
The Atacama Cosmology Telescope: CMB polarization at 200 < ℓ < 9000
- 10 March 2014
- Published by American Physical Society (APS) in Physical Review A
- Vol. 89 (3)
Spin dephasing as a probe of mode temperature, motional state distributions, and heating rates in a two-dimensional ion crystal
We employ spin-dependent optical dipole forces to characterize the transverse center-of-mass (COM) motional mode of a two-dimensional Wigner crystal of hundreds of ${}^{9}$Be${}^{+}$. By comparing the measured spin dephasing produced by the spin-dependent force with the predictions of a semiclassical dephasing model, we obtain absolute mode temperatures in excellent agreement with both the Doppler laser cooling limit and measurements obtained from a previously published technique [B. C. Sawyer et al., Phys. Rev. Lett. 108, 213003 (2012)]. Furthermore, the structure of the dephasing histograms allows for discrimination between initial thermal and coherent states of motion. We also apply the techniques discussed here to measure the ambient-heating rate of the COM mode of a 2D Coulomb crystal in a Penning trap. This measurement places an upper limit on the anomalous single-ion heating rate due to electric field noise from the trap electrode surfaces of $\frac{d\overline{n}}{dt}$\sim${}5$ s${}^{$-${}1}$ for our trap at a frequency of 795 kHz, where $\overline{n}$ is the mean occupation of quantized COM motion in the axial harmonic well.- 10 March 2014
- Published by American Physical Society (APS) in Physical Review A
- Vol. 89 (3)
Spin dephasing as a probe of mode temperature, motional state distributions, and heating rates in a two-dimensional ion crystal
We employ spin-dependent optical dipole forces to characterize the transverse center-of-mass (COM) motional mode of a two-dimensional Wigner crystal of hundreds of ${}^{9}$Be${}^{+}$. By comparing the measured spin dephasing produced by the spin-dependent force with the predictions of a semiclassical dephasing model, we obtain absolute mode temperatures in excellent agreement with both the Doppler laser cooling limit and measurements obtained from a previously published technique [B. C. Sawyer et al., Phys. Rev. Lett. 108, 213003 (2012)]. Furthermore, the structure of the dephasing histograms allows for discrimination between initial thermal and coherent states of motion. We also apply the techniques discussed here to measure the ambient-heating rate of the COM mode of a 2D Coulomb crystal in a Penning trap. This measurement places an upper limit on the anomalous single-ion heating rate due to electric field noise from the trap electrode surfaces of $\frac{d\overline{n}}{dt}$\sim${}5$ s${}^{$-${}1}$ for our trap at a frequency of 795 kHz, where $\overline{n}$ is the mean occupation of quantized COM motion in the axial harmonic well.- 16 December 2013
- Published by Optica Publishing Group in Applied Optics
- Vol. 52 (36) , 8747-8758
Large-aperture wide-bandwidth antireflection-coated silicon lenses for millimeter wavelengths
The increasing scale of cryogenic detector arrays for submillimeter and millimeter wavelength astrophysics has led to the need for large aperture, high index of refraction, low loss, cryogenic refracting optics. Silicon with , low loss, and high thermal conductivity is a nearly optimal material for these purposes but requires an antireflection (AR) coating with broad bandwidth, low loss, low reflectance, and a matched coefficient of thermal expansion. We present an AR coating for curved silicon optics comprised of subwavelength features cut into the lens surface with a custom three-axis silicon dicing saw. These features constitute a metamaterial that behaves as a simple dielectric coating. We have fabricated silicon lenses as large as 33.4 cm in diameter with micromachined layers optimized for use between 125 and 165 GHz. Our design reduces average reflections to a few tenths of a percent for angles of incidence up to 30° with low cross polarization. We describe the design, tolerance, manufacture, and measurements of these coatings and present measurements of the optical properties of silicon at millimeter wavelengths at cryogenic and room temperatures. This coating and lens fabrication approach is applicable from centimeter to submillimeter wavelengths and can be used to fabricate coatings with greater than octave bandwidth.- 16 December 2013
- Published by Optica Publishing Group in Applied Optics
- Vol. 52 (36) , 8747-8758
Large-aperture wide-bandwidth antireflection-coated silicon lenses for millimeter wavelengths
The increasing scale of cryogenic detector arrays for submillimeter and millimeter wavelength astrophysics has led to the need for large aperture, high index of refraction, low loss, cryogenic refracting optics. Silicon with , low loss, and high thermal conductivity is a nearly optimal material for these purposes but requires an antireflection (AR) coating with broad bandwidth, low loss, low reflectance, and a matched coefficient of thermal expansion. We present an AR coating for curved silicon optics comprised of subwavelength features cut into the lens surface with a custom three-axis silicon dicing saw. These features constitute a metamaterial that behaves as a simple dielectric coating. We have fabricated silicon lenses as large as 33.4 cm in diameter with micromachined layers optimized for use between 125 and 165 GHz. Our design reduces average reflections to a few tenths of a percent for angles of incidence up to 30° with low cross polarization. We describe the design, tolerance, manufacture, and measurements of these coatings and present measurements of the optical properties of silicon at millimeter wavelengths at cryogenic and room temperatures. This coating and lens fabrication approach is applicable from centimeter to submillimeter wavelengths and can be used to fabricate coatings with greater than octave bandwidth.