Electro-optic transduction in silicon via GHz-frequency nanomechanics

Kavli Affiliate: Mohammad Mirhosseini | First 5 Authors: Han Zhao, Alkim Bozkurt, Mohammad Mirhosseini, , | Summary: Interfacing electronics with optical fiber networks is key to the long-distance transfer of classical and quantum information. Piezo-optomechanical transducers enable such interfaces by using GHz-frequency acoustic vibrations as mediators for converting microwave photons to optical photons via the […]


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Vibration characteristics of a continuously rotating superconducting magnetic bearing and potential influence to TES and SQUID

Kavli Affiliate: Nobuhiko Katayama | First 5 Authors: Shinya Sugiyama, Tommaso Ghigna, Yurika Hoshino, Nobuhiko Katayama, Satoru Katsuda | Summary: We measured the vibration of a prototype superconducting magnetic bearing (SMB) operating at liquid nitrogen temperature. This prototype system was designed as a breadboard model for LiteBIRD low-frequency telescope (LFT) polarization modulator unit. We set […]


Continue.. Vibration characteristics of a continuously rotating superconducting magnetic bearing and potential influence to TES and SQUID

Analysis of the gradient for the stochastic fractional heat equation with spatially-colored noise in $mathbb R^d$

Kavli Affiliate: Ran Wang | First 5 Authors: Ran Wang, , , , | Summary: Consider the stochastic partial differential equation $$ frac{partial }{partial t}u_t(mathbf{x})= -(-Delta)^{frac{alpha}{2}}u_t(mathbf{x}) +bleft(u_t(mathbf{x})right)+sigmaleft(u_t(mathbf{x})right) dot F(t, mathbf{x}), tge0, mathbf{x}in mathbb R^d, $$ where $-(-Delta)^{frac{alpha}{2}}$ denotes the fractional Laplacian with the power $alpha/2in (1/2,1]$, and the driving noise $dot F$ is a centered […]


Continue.. Analysis of the gradient for the stochastic fractional heat equation with spatially-colored noise in $mathbb R^d$

Two Modes of LyC Escape From Bursty Star Formation: Implications for [C II] Deficits and the Sources of Reionization

Kavli Affiliate: Martin Haehnelt | First 5 Authors: Harley Katz, Aayush Saxena, Joki Rosdahl, Taysun Kimm, Jeremy Blaizot | Summary: We use the SPHINX$^{20}$ cosmological radiation hydrodynamics simulation to study how Lyman Continuum (LyC) photons escape from galaxies and the observational signatures of this escape. We define two classes of LyC leaker: Bursty Leakers and […]


Continue.. Two Modes of LyC Escape From Bursty Star Formation: Implications for [C II] Deficits and the Sources of Reionization

Probable low-frequency quasi-periodic oscillations in blazars from the ZTF survey

Kavli Affiliate: Luis C. Ho | First 5 Authors: Anuvab Banerjee, Vibhore Negi, Ravi Joshi, Nagendra Kumar, Paul J. Wiita | Summary: We investigate the possible presence of quasi-periodic oscillation (QPO) signals in 2103 blazars from the Zwicky Transient Facility (ZTF) time-domain survey. We detect a low-frequency QPO signal in five blazars observed over these […]


Continue.. Probable low-frequency quasi-periodic oscillations in blazars from the ZTF survey

Superconductivity in doped triangular Mott insulators: the roles of parent spin backgrounds and charge kinetic energy

Kavli Affiliate: Zheng Zhu | First 5 Authors: Zheng Zhu, Qianqian Chen, , , | Summary: We study the prerequisites for realizing superconductivity in doped triangular-lattice Mott insulators by considering three distinct parent spin backgrounds, i.e., $120^{circ}$ antiferromagnets, quantum spin liquid, and stripy antiferromagnets, and all possible sign combinations $(tau_1, tau_2)$ of nearest-neighbor hopping and […]


Continue.. Superconductivity in doped triangular Mott insulators: the roles of parent spin backgrounds and charge kinetic energy

Superconductivity in doped triangular Mott insulators: the roles of parent spin backgrounds and charge kinetic energy

Kavli Affiliate: Zheng Zhu | First 5 Authors: Zheng Zhu, Qianqian Chen, , , | Summary: We study the prerequisites for realizing superconductivity in doped triangular-lattice Mott insulators by considering three distinct parent spin backgrounds, i.e., $120^{circ}$ antiferromagnets, quantum spin liquid, and stripy antiferromagnets, and all possible sign combinations $(tau_1, tau_2)$ of nearest-neighbor hopping and […]


Continue.. Superconductivity in doped triangular Mott insulators: the roles of parent spin backgrounds and charge kinetic energy

Quantum metrology of low frequency electromagnetic modes with frequency upconverters

Kavli Affiliate: Kent D. Irwin | First 5 Authors: Stephen E. Kuenstner, Elizabeth C. van Assendelft, Saptarshi Chaudhuri, Hsiao-Mei Cho, Jason Corbin | Summary: We describe the RF Quantum Upconverter (RQU) and describe its application to quantum metrology of electromagnetic modes between dc and the Very High Frequency band (VHF) ($lesssim$300MHz). The RQU uses a […]


Continue.. Quantum metrology of low frequency electromagnetic modes with frequency upconverters

Quantum metrology of low frequency electromagnetic modes with frequency upconverters

Kavli Affiliate: Dale Li | First 5 Authors: Stephen E. Kuenstner, Elizabeth C. van Assendelft, Saptarshi Chaudhuri, Hsiao-Mei Cho, Jason Corbin | Summary: 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) ($lesssim$300MHz). The RQU uses a Josephson […]


Continue.. Quantum metrology of low frequency electromagnetic modes with frequency upconverters