Initial Design of a W-band Superconducting Kinetic Inductance Qubit (Kineticon)

Kavli Affiliate: Mohammad Mirhosseini | First 5 Authors: Farzad B. Faramarzi, Peter K. Day, Jacob Glasby, Sasha Sypkens, Marco Colangelo | Summary: Superconducting qubits are widely used in quantum computing research and industry. We describe a superconducting kinetic inductance qubit (and introduce the term Kineticon to describe it) operating at W-band frequencies with a nonlinear […]


Continue.. Initial Design of a W-band Superconducting Kinetic Inductance Qubit (Kineticon)

Bloch-Lorentz magnetoresistance oscillations in delafossites

Kavli Affiliate: Anton Akhmerov | First 5 Authors: Kostas Vilkelis, Lin Wang, Anton Akhmerov, , | Summary: Recent measurements of the out-of-plane magnetoresistance of delafossites (PdCoO$_2$ and PtCoO$_2$) observed oscillations closely resembling the Aharonov-Bohm effect. Here, we show that the magnetoresistance oscillations are explained by the Bloch-like oscillations of the out-of-plane electron trajectories. We develop […]


Continue.. Bloch-Lorentz magnetoresistance oscillations in delafossites

Bloch-Lorentz magnetoresistance oscillations in delafossites

Kavli Affiliate: Anton Akhmerov | First 5 Authors: Kostas Vilkelis, Lin Wang, Anton Akhmerov, , | Summary: Recent measurements of the out-of-plane magnetoresistance of delafossites (PdCoO$_2$ and PtCoO$_2$) observed oscillations which closely resemble the Aharanov-Bohm effect. We develop a semiclassical theory of these oscillations and show that they are a consequence of the quasi-2D dispersion […]


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Gravitational wave constraints on the primordial black hole dominated early universe

Kavli Affiliate: Misao Sasaki | First 5 Authors: Guillem Domènech, Chunshan Lin, Misao Sasaki, , | Summary: We calculate the gravitational waves (GWs) induced by the density fluctuations due to inhomogeneous distribution of primordial black holes (PBHs) in the case where PBHs eventually dominate and reheat the universe by Hawking evaporation. The initial PBH density […]


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Games and Computational Complexity

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: Zeeshan Ahmed, Alapan Chaudhuri, Kunwar Shaanjeet Singh Grover, Hrishi Narayanan, Manasvi Vaidyula | Summary: Computers are known to solve a wide spectrum of problems, however not all problems are computationally solvable. Further, the solvable problems themselves vary on the amount of computational resources they require for being […]


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Discovery of a damped Ly$α$ galaxy at z $sim$ 3 towards the quasar SDSS J011852+040644

Kavli Affiliate: Linhua Jiang | First 5 Authors: Ravi Joshi, Michele Fumagalli, Raghunathan Srianand, Pasquier Noterdaeme, Patrick Petitjean | Summary: We report the detection of the host galaxy of a damped Ly$alpha$ system (DLA) with log N(HI) $ [rm cm^{-2}]$ = $21.0 pm 0.10$ at $z approx 3.0091$ towards the background quasar SDSS J011852+040644 using […]


Continue.. Discovery of a damped Ly$α$ galaxy at z $sim$ 3 towards the quasar SDSS J011852+040644

Tiny-box: A tool for the versatile development and characterization of low noise fast X-ray imaging detectors

Kavli Affiliate: Steven Allen | First 5 Authors: Tanmoy Chattopadhyay, Sven Herrmann, Steven Allen, Jack Hirschman, Glenn Morris | Summary: X-ray Charge Coupled Devices (CCDs) have been the workhorse for soft X-ray astronomical instruments for the past quarter century. They provide broad energy response, extremely low electronic read noise, and good energy resolution in soft […]


Continue.. Tiny-box: A tool for the versatile development and characterization of low noise fast X-ray imaging detectors

Tiny-box: A tool for the versatile development and characterization of low noise fast X-ray imaging detectors

Kavli Affiliate: Richard Foster | First 5 Authors: Tanmoy Chattopadhyay, Sven Herrmann, Steven Allen, Jack Hirschman, Glenn Morris | Summary: X-ray Charge Coupled Devices (CCDs) have been the workhorse for soft X-ray astronomical instruments for the past quarter century. They provide broad energy response, extremely low electronic read noise, and good energy resolution in soft […]


Continue.. Tiny-box: A tool for the versatile development and characterization of low noise fast X-ray imaging detectors

Interferometric Constraints on Spacelike Coherent Rotational Fluctuations

Kavli Affiliate: Rainer Weiss | First 5 Authors: Jonathan W. Richardson, Ohkyung Kwon, H. Richard Gustafson, Craig Hogan, Brittany L. Kamai | Summary: Precision measurements are reported of the cross-spectrum of rotationally-induced differential position displacements in a pair of colocated 39 m long, high power Michelson interferometers. One arm of each interferometer is bent $90^{circ}$ […]


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