Methods of Error Estimation for Delay Power Spectra in $21,textrm{cm}$ Cosmology

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: Jianrong Tan, Adrian Liu, Nicholas S. Kern, Zara Abdurashidova, James E. Aguirre | Summary: Precise measurements of the 21 cm power spectrum are crucial for understanding the physical processes of hydrogen reionization. Currently, this probe is being pursued by low-frequency radio interferometer arrays. As these experiments […]


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Should the Endless Frontier of Federal Science be Expanded?

Kavli Affiliate: Thomas Rosenbaum | First 5 Authors: David Baltimore, Robert Conn, William H Press, Thomas Rosenbaum, David N Spergel | Summary: Scientific research in the United States could receive a large increase in federal funding–up to 100 billion dollars over five years — if proposed legislation entitled the Endless Frontiers Act becomes law. This […]


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On the exponentially small corrections to ${cal N} = 2$ superconformal correlators at large R-charge

Kavli Affiliate: Simeon Hellerman | First 5 Authors: Simeon Hellerman, , , , | Summary: In this note we consider Coulomb-branch chiral primary correlation functions in ${cal N} = 2$ superconformal QCD with gauge group $SU(2)$, in the limit of large R-charge ${cal J} = 2n$ for the chiral primary operators $[{cal O}(x)]^ n$ with […]


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Non-unitary TQFTs from 3D $mathcal{N}=4$ rank 0 SCFTs

Kavli Affiliate: Masahito Yamazaki | First 5 Authors: Dongmin Gang, Sungjoon Kim, Kimyeong Lee, Myungbo Shim, Masahito Yamazaki | Summary: We propose a novel procedure of assigning a pair of non-unitary topological quantum field theories (TQFTs), TFT$_pm [mathcal{T}_{rm rank ;0}]$, to a (2+1)D interacting $mathcal{N}=4$ superconformal field theory (SCFT) $mathcal{T}_{rm rank ;0}$ of rank 0, […]


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Spin-Phonon Interaction in Yttrium Iron Garnet

Kavli Affiliate: Nicole A. Benedek | First 5 Authors: Kevin S. Olsson, Jeongheon Choe, Martin Rodriguez-Vega, Guru Khalsa, Nicole A. Benedek | Summary: Spin-phonon interaction is an important channel for spin and energy relaxation in magnetic insulators. Understanding this interaction is critical for developing magnetic insulator-based spintronic devices. Quantifying this interaction in yttrium iron garnet […]


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To H0 or not to H0?

Kavli Affiliate: George Efstathiou | First 5 Authors: George Efstathiou, , , , | Summary: This paper investigates whether changes to late time physics can resolve the `Hubble tension’. It is argued that many of the claims in the literature favouring such solutions are caused by a misunderstanding of how distance ladder measurements actually work […]


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Non-universal current flow near the metal-insulator transition in an oxide interface

Kavli Affiliate: Andrea D. Caviglia | First 5 Authors: Eylon Persky, Naor Vardi, Ana Mafalda R. V. L. Monteiro, Thierry C. van Thiel, Hyeok Yoon | Summary: In systems near phase transitions, macroscopic properties often follow algebraic scaling laws, determined by the dimensionality and the underlying symmetries of the system. The emergence of such universal […]


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A Lunar Farside Low Radio Frequency Array for Dark Ages 21-cm Cosmology

Kavli Affiliate: Albert Stebbins | First 5 Authors: Jack Burns, Gregg Hallinan, Tzu-Ching Chang, Marin Anderson, Judd Bowman | Summary: An array of low-frequency dipole antennas on the lunar farside surface will probe a unique, unexplored epoch in the early Universe called the Dark Ages. It begins at Recombination when neutral hydrogen atoms formed, first […]


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Search for anisotropic gravitational-wave backgrounds using data from Advanced LIGO and Advanced Virgo’s first three observing runs

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration, R. Abbott, T. D. Abbott | Summary: We report results from searches for anisotropic stochastic gravitational-wave backgrounds using data from the first three observing runs of the Advanced LIGO and Advanced Virgo detectors. For the first time, […]


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Accurate Measurement of the Gap of Graphene/hBN Moiré Superlattice through Photocurrent Spectroscopy

Kavli Affiliate: Paul L. McEuen | First 5 Authors: Tianyi Han, Jixiang Yang, Qihang Zhang, Lei Wang, Kenji Watanabe | Summary: Monolayer graphene aligned with hexagonal boron nitride (hBN) develops a gap at the charge neutrality point (CNP). This gap has previously been extensively studied by electrical transport through thermal activation measurements. Here, we report […]


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