Low two-level-system noise in hydrogenated amorphous silicon

Kavli Affiliate: Sunil R. Golwala | First 5 Authors: Fabien Defrance, Andrew D. Beyer, Jordan Wheeler, Jack Sayers, Sunil R. Golwala | Summary: At sub-Kelvin temperatures, two-level systems (TLS) present in amorphous dielectrics source a permittivity noise, degrading the performance of a wide range of devices using superconductive resonators such as qubits or kinetic inductance […]


Continue.. Low two-level-system noise in hydrogenated amorphous silicon

A mechanical quantum memory for microwave photons

Kavli Affiliate: Mohammad Mirhosseini | First 5 Authors: Alkım B. Bozkurt, Omid Golami, Yue Yu, Hao Tian, Mohammad Mirhosseini | Summary: Long-lived mechanical oscillators are actively pursued as critical resources for quantum storage, sensing, and transduction. However, achieving deterministic quantum control while limiting mechanical dissipation remains a persistent challenge. Here, we demonstrate strong coupling between […]


Continue.. A mechanical quantum memory for microwave photons

Relativistic Mott transition in strongly correlated artificial graphene

Kavli Affiliate: Jie Shan | First 5 Authors: Liguo Ma, Raghav Chaturvedi, Phuong X. Nguyen, Kenji Watanabe, Takashi Taniguchi | Summary: The realization of graphene has provided a bench-top laboratory for quantum electrodynamics. The low-energy excitations of graphene are two-dimensional massless Dirac fermions with opposite chiralities at the $pm$K valleys of the graphene Brillouin zone. […]


Continue.. Relativistic Mott transition in strongly correlated artificial graphene

Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Kavli Affiliate: Alireza Marandi | First 5 Authors: Shivam Mundhra, Elina Sendonaris, Robert M. Gray, James Williams, Alireza Marandi | Summary: Thin-film lithium niobate (TFLN) has recently emerged as a promising platform for integrated nonlinear photonics, enabling the use of optical parametric amplifiers (OPAs) for applications in quantum information processing, precision metrology, and ultrafast optical […]


Continue.. Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Kavli Affiliate: Alireza Marandi | First 5 Authors: Shivam Mundhra, Elina Sendonaris, Robert M. Gray, James Williams, Alireza Marandi | Summary: Thin-film lithium niobate (TFLN) has recently emerged as a promising platform for integrated nonlinear photonics, enabling the use of optical parametric amplifiers (OPAs) for applications in quantum information processing, precision metrology, and ultrafast optical […]


Continue.. Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Kavli Affiliate: Alireza Marandi | First 5 Authors: Shivam Mundhra, Elina Sendonaris, Robert M. Gray, James Williams, Alireza Marandi | Summary: Thin-film lithium niobate (TFLN) has recently emerged as a promising platform for integrated nonlinear photonics, enabling the use of optical parametric amplifiers (OPAs) for applications in quantum information processing, precision metrology, and ultrafast optical […]


Continue.. Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Self-supervised cost of transport estimation for multimodal path planning

Kavli Affiliate: Morteza Gharib | First 5 Authors: Vincent Gherold, Ioannis Mandralis, Eric Sihite, Adarsh Salagame, Alireza Ramezani | Summary: Autonomous robots operating in real environments are often faced with decisions on how best to navigate their surroundings. In this work, we address a particular instance of this problem: how can a robot autonomously decide […]


Continue.. Self-supervised cost of transport estimation for multimodal path planning

A quantized anomalous Hall effect above 4.2 K in stacked topological insulator/magnet bilayers

Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Rakshit Jain, Matthew Roddy, Vishakha Gupta, Benjamin Huang, Hasan M. Sayeed | Summary: Quantized anomalous Hall effects (QAHEs) occur in remarkable electronic states which possess not only quantized Hall signals but in some cases regions of dissipationless electron transport. The initial demonstrations of a QAHE in […]


Continue.. A quantized anomalous Hall effect above 4.2 K in stacked topological insulator/magnet bilayers

Baseband control of single-electron silicon spin qubits in two dimensions

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Florian K. Unseld, Brennan Undseth, Eline Raymenants, Yuta Matsumoto, Saurabh Karwal | Summary: Micromagnet-enabled electric-dipole spin resonance (EDSR) is an established method of high-fidelity single-spin control in silicon. However, the resulting architectural limitations have restrained silicon quantum processors to one-dimensional arrays, and heating effects from the associated […]


Continue.. Baseband control of single-electron silicon spin qubits in two dimensions