Constraints on the spectrum of field theories with non-integer $O(N)$ symmetry from quantum evanescence

Kavli Affiliate: Tom Melia | First 5 Authors: Weiguang Cao, Xiaochuan Lu, Tom Melia, , | Summary: We identify constraints in the energy spectra of quantum theories that have a global $O(N)$ symmetry, where $N$ is treated as a continuous parameter. We point out that a class of evanescent states fall out of the spectrum […]


Continue.. Constraints on the spectrum of field theories with non-integer $O(N)$ symmetry from quantum evanescence

Spectrum Degeneracies from Quantum Evanescence

Kavli Affiliate: Tom Melia | First 5 Authors: Weiguang Cao, Xiaochuan Lu, Tom Melia, , | Summary: We identify degeneracies in the energy spectra of quantum theories that occur at integer values of the continuous parameter $N$ of an analytically continued global $O(N)$ symmetry. The degeneracies are enforced by the requirement that evanescent states fall […]


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Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

Kavli Affiliate: Ronald A. Remillard | First 5 Authors: Niek Bollemeijer, Phil Uttley, Arkadip Basak, Adam Ingram, Jakob van den Eijnden | Summary: In X-ray observations of hard state black hole X-ray binaries, rapid variations in accretion disc and coronal power-law emission are correlated and show Fourier-frequency-dependent time lags. On short (~0.1 s) time-scales, these […]


Continue.. Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

Kavli Affiliate: Ronald A. Remillard | First 5 Authors: Niek Bollemeijer, Phil Uttley, Arkadip Basak, Adam Ingram, Jakob van den Eijnden | Summary: In X-ray observations of hard state black hole X-ray binaries, rapid variations in accretion disc and coronal power-law emission are correlated and show Fourier-frequency-dependent time lags. On short (~0.1 s) time-scales, these […]


Continue.. Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

Kavli Affiliate: Ronald A. Remillard | First 5 Authors: Niek Bollemeijer, Phil Uttley, Arkadip Basak, Adam Ingram, Jakob van den Eijnden | Summary: In X-ray observations of hard state black hole X-ray binaries, rapid variations in accretion disc and coronal power-law emission are correlated and show Fourier-frequency-dependent time lags. On short (~0.1 s) time-scales, these […]


Continue.. Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

Kavli Affiliate: Ronald A. Remillard | First 5 Authors: Niek Bollemeijer, Phil Uttley, Arkadip Basak, Adam Ingram, Jakob van den Eijnden | Summary: In X-ray observations of hard state black hole X-ray binaries, rapid variations in accretion disc and coronal power-law emission are correlated and show Fourier-frequency-dependent time lags. On short (~0.1 s) time-scales, these […]


Continue.. Evidence for a dynamic corona in the short-term time lags of black hole X-ray binary MAXI J1820+070

matvis: A matrix-based visibility simulator for fast forward modelling of many-element 21 cm arrays

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: Piyanat Kittiwisit, Steven G. Murray, Hugh Garsden, Philip Bull, Christopher Cain | Summary: Detection of the faint 21 cm line emission from the Cosmic Dawn and Epoch of Reionisation will require not only exquisite control over instrumental calibration and systematics to achieve the necessary dynamic range […]


Continue.. matvis: A matrix-based visibility simulator for fast forward modelling of many-element 21 cm arrays

Axion-Like Particle Detection in Alkali-Noble-Gas Haloscopes

Kavli Affiliate: Jia Liu | First 5 Authors: Xiaofei Huang, Xiaolin Ma, Lei Cong, Wei Ji, Jia Liu | Summary: Revealing the essence of dark matter (DM) and dark energy is essential for understanding our universe. Ultralight (rest energy $<$10 eV) bosonic particles, including pseudoscalar axions and axion-like particles (ALPs) have emerged among leading candidates […]


Continue.. Axion-Like Particle Detection in Alkali-Noble-Gas Haloscopes

Axion-like Particle Detection in Alkali-Noble-Gas Haloscopes

Kavli Affiliate: Jia Liu | First 5 Authors: Xiaofei Huang, Xiaolin Ma, Lei Cong, Wei Ji, Jia Liu | Summary: Revealing the essence of dark matter (DM) and dark energy is essential for understanding our universe. Ultralight (rest energy $<$10 eV) bosonic particles, including pseudoscalar axions and axion-like particles (ALPs) have emerged among leading candidates […]


Continue.. Axion-like Particle Detection in Alkali-Noble-Gas Haloscopes

Vacuum Beam Guide for Large-Scale Quantum Networks

Kavli Affiliate: Rana X. Adhikari | First 5 Authors: Yuexun Huang, Francisco Salces–Carcoba, Rana X Adhikari, Amir H. Safavi-Naeini, Liang Jiang | Summary: The vacuum beam guide (VBG) presents a completely different solution for quantum channels to overcome the limitations of existing fiber and satellite technologies for long-distance quantum communication. With an array of aligned […]


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