Defect dynamics in growing bacterial colonies

Kavli Affiliate: Sander J. Tans | First 5 Authors: Rachel Los, Duco van Holthe tot Echten, Gerhard Nordemann, Martijn Wehrens, Sander J. Tans | Summary: Colonies of rod-shaped bacteria constitute a system of colloidal active matter with nematic properties. As a single initial bacterium multiplies through repeated divisions, the resulting colony quickly loses long-range orientational […]


Continue.. Defect dynamics in growing bacterial colonies

Extent of Fermi-surface reconstruction in the high-temperature superconductor HgBa$_2$CuO$_{4+δ}$

Kavli Affiliate: Brad J. Ramshaw | First 5 Authors: Mun K. Chan, Ross D. McDonald, Brad J. Ramshaw, Jon B. Betts, Arkady Shekhter | Summary: High magnetic fields have revealed a surprisingly small Fermi-surface in underdoped cuprates, possibly resulting from Fermi-surface reconstruction due to an order parameter that breaks translational symmetry of the crystal lattice. […]


Continue.. Extent of Fermi-surface reconstruction in the high-temperature superconductor HgBa$_2$CuO$_{4+δ}$

NuSTAR and Chandra Observation of the Galactic Center Non-thermal X-ray Filament G0.13-0.11: A Pulsar Wind Nebula Driven Magnetic Filament

Kavli Affiliate: Dheeraj Pasham | First 5 Authors: Shuo Zhang, Zhenlin Zhu, Hui Li, Dheeraj Pasham, Zhiyuan Li | Summary: One of the most unique phenomena in the Galactic center region is the existence of numerous long and narrow filamentary structures within a few hundred parsecs of Sgr A$^{star}$. While more than one than one […]


Continue.. NuSTAR and Chandra Observation of the Galactic Center Non-thermal X-ray Filament G0.13-0.11: A Pulsar Wind Nebula Driven Magnetic Filament

NuSTAR and Chandra Observation of the Galactic Center Non-thermal X-ray Filament G0.13-0.11: A Pulsar Wind Nebula Driven Magnetic Filament

Kavli Affiliate: Dheeraj Pasham | First 5 Authors: Shuo Zhang, Zhenlin Zhu, Hui Li, Dheeraj Pasham, Zhiyuan Li | Summary: One of the most unique phenomena in the Galactic center region is the existence of numerous long and narrow filamentary structures within a few hundred parsecs of Sgr A$^{star}$. While more than one than one […]


Continue.. NuSTAR and Chandra Observation of the Galactic Center Non-thermal X-ray Filament G0.13-0.11: A Pulsar Wind Nebula Driven Magnetic Filament

Scaling down an insect-size microrobot, HAMR-VI into HAMR-Jr

Kavli Affiliate: Robert J. Wood | First 5 Authors: Kaushik Jayaram, Jennifer Shum, Samantha Castellanos, E. Farrell Helbling, Robert J. Wood | Summary: Here we present HAMR-Jr, a SI{22.5}{millimeter}, SI{320}{milligram} quadrupedal microrobot. With eight independently actuated degrees of freedom, HAMR-Jr is, to our knowledge, the most mechanically dexterous legged robot at its scale and is […]


Continue.. Scaling down an insect-size microrobot, HAMR-VI into HAMR-Jr

Scaling down an insect-size microrobot, HAMR-VI into HAMR-Jr

Kavli Affiliate: Robert J. Wood | First 5 Authors: Kaushik Jayaram, Jennifer Shum, Samantha Castellanos, E. Farrell Helbling, Robert J. Wood | Summary: Here we present HAMR-Jr, a SI{22.5}{millimeter}, SI{320}{milligram} quadrupedal microrobot. With eight independently actuated degrees of freedom, HAMR-Jr is, to our knowledge, the most mechanically dexterous legged robot at its scale and is […]


Continue.. Scaling down an insect-size microrobot, HAMR-VI into HAMR-Jr

Efficient unitary designs with a system-size independent number of non-Clifford gates

Kavli Affiliate: David Gross | First 5 Authors: Jonas Haferkamp, Felipe Montealegre-Mora, Markus Heinrich, Jens Eisert, David Gross | Summary: Many quantum information protocols require the implementation of random unitaries. Because it takes exponential resources to produce Haar-random unitaries drawn from the full $n$-qubit group, one often resorts to $t$-designs. Unitary $t$-designs mimic the Haar-measure […]


Continue.. Efficient unitary designs with a system-size independent number of non-Clifford gates

Computational Synthesis of Substrates by Crystal Cleavage

Kavli Affiliate: Kyle Shen | First 5 Authors: Joshua T. Paul, Alice Galdi, Christopher Parzyck, Kyle Shen, Richard G. Hennig | Summary: The discovery of novel substrate materials has been dominated by trial and error, opening the opportunity for a systematic search. To identify stable crystal surfaces, we generate bonding networks for materials from the […]


Continue.. Computational Synthesis of Substrates by Crystal Cleavage

Spectral analysis on standard locally homogeneous spaces

Kavli Affiliate: Toshiyuki Kobayashi | First 5 Authors: Fanny Kassel, Toshiyuki Kobayashi, , , | Summary: Let $X=G/H$ be a reductive homogeneous space with $H$ noncompact, endowed with a $G$-invariant pseudo-Riemannian structure. Let $L$ be a reductive subgroup of $G$ acting properly on $X$ and $Gamma$ a torsion-free discrete subgroup of $L$. Under the assumption […]


Continue.. Spectral analysis on standard locally homogeneous spaces

Mitigating the impact of fiber assignment on clustering measurements from deep galaxy redshift surveys

Kavli Affiliate: Naoyuki Tamura | First 5 Authors: Tomomi Sunayama, Masahiro Takada, Martin Reinecke, Ryu Makiya, Takahiro Nishimichi | Summary: We examine the impact of fiber assignment on clustering measurements from fiber-fed spectroscopic galaxy surveys. We identify new effects which were absent in previous, relatively shallow galaxy surveys such as Baryon Oscillation Spectroscopic Survey . […]


Continue.. Mitigating the impact of fiber assignment on clustering measurements from deep galaxy redshift surveys