A new graph-neural-network flavor tagger for Belle II and measurement of $sin2φ_1$ in $B^0 to J/ψK^0_text{S}$ decays

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara | Summary: We present GFlaT, a new algorithm that uses a graph-neural-network to determine the flavor of neutral $B$ mesons produced in $Upsilon(4S)$ decays. It improves previous algorithms by using the information from all charged final-state […]


Continue.. A new graph-neural-network flavor tagger for Belle II and measurement of $sin2φ_1$ in $B^0 to J/ψK^0_text{S}$ decays

New graph-neural-network flavor tagger for Belle II and measurement of $sin2φ_1$ in $B^0 to J/ψK^0_text{S}$ decays

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara | Summary: We present GFlaT, a new algorithm that uses a graph-neural-network to determine the flavor of neutral $B$ mesons produced in $Upsilon(4S)$ decays. It improves previous algorithms by using the information from all charged final-state […]


Continue.. New graph-neural-network flavor tagger for Belle II and measurement of $sin2φ_1$ in $B^0 to J/ψK^0_text{S}$ decays

Direct Detection of Dark Photon Dark Matter with the James Webb Space Telescope

Kavli Affiliate: Jia Liu | First 5 Authors: Haipeng An, Shuailiang Ge, Jia Liu, Zhiyao Lu, | Summary: In this study, we propose an investigation into dark photon dark matter (DPDM) within the infrared frequency band, utilizing highly sensitive infrared light detectors commonly integrated into space telescopes, such as the James Webb Space Telescope (JWST). […]


Continue.. Direct Detection of Dark Photon Dark Matter with the James Webb Space Telescope

An attractive model: simulating fuzzy dark matter with attractive self-interactions

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Connor A. Painter, Michael Boylan-Kolchin, Philip Mocz, Mark Vogelsberger, | Summary: Fuzzy Dark Matter (FDM) comprised of ultralight ($m sim 10^{-22}~rm{eV}$) boson particles has received significant attention as a viable alternative to Cold Dark Matter (CDM), as it approximates CDM on large scales ($gtrsim 1$ Mpc) while […]


Continue.. An attractive model: simulating fuzzy dark matter with attractive self-interactions

Quantum error thresholds for gauge-redundant digitizations of lattice field theories

Kavli Affiliate: Marcela Carena | First 5 Authors: Marcela Carena, Henry Lamm, Ying-Ying Li, Wanqiang Liu, | Summary: In the quantum simulation of lattice gauge theories, gauge symmetry can be either fixed or encoded as a redundancy of the Hilbert space. While gauge-fixing reduces the number of qubits, keeping the gauge redundancy can provide code […]


Continue.. Quantum error thresholds for gauge-redundant digitizations of lattice field theories

Measuring Mass Transfer Rates in Coalescing Neutron Star–White Dwarf Binaries with Deci-Hz Gravitational-wave Detectors

Kavli Affiliate: Lijing Shao | First 5 Authors: Zhenwei Lyu, Lijing Shao, , , | Summary: Coalescing neutron star–white dwarf (NS-WD) binaries are among the primary targets for upcoming space-borne gravitational wave (GW) detectors such as LISA, TaiJi, TianQin, etc. During close interaction, these binaries undergo mass transfer, emitting simultaneous X-rays and GWs. This offers […]


Continue.. Measuring Mass Transfer Rates in Coalescing Neutron Star–White Dwarf Binaries with Deci-Hz Gravitational-wave Detectors

Modeling Phonon-mediated Quasiparticle Poisoning in Superconducting Qubit Arrays

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Eric Yelton, Clayton P. Larson, Vito Iaia, Kenneth Dodge, Guglielmo La Magna | Summary: Correlated errors caused by ionizing radiation impacting superconducting qubit chips are problematic for quantum error correction. Such impacts generate quasiparticle (QP) excitations in the qubit electrodes, which temporarily reduce qubit coherence significantly. The […]


Continue.. Modeling Phonon-mediated Quasiparticle Poisoning in Superconducting Qubit Arrays

Modeling phonon-mediated quasiparticle poisoning in superconducting qubit arrays

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Eric Yelton, Clayton P. Larson, Vito Iaia, Kenneth Dodge, Guglielmo La Magna | Summary: Correlated errors caused by ionizing radiation impacting superconducting qubit chips are problematic for quantum error correction. Such impacts generate quasiparticle (QP) excitations in the qubit electrodes, which temporarily reduce qubit coherence significantly. The […]


Continue.. Modeling phonon-mediated quasiparticle poisoning in superconducting qubit arrays

Modeling phonon-mediated quasiparticle poisoning in superconducting qubit arrays

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Eric Yelton, Clayton P. Larson, Vito Iaia, Kenneth Dodge, Guglielmo La Magna | Summary: Correlated errors caused by ionizing radiation impacting superconducting qubit chips are problematic for quantum error correction. Such impacts generate quasiparticle (QP) excitations in the qubit electrodes, which temporarily reduce qubit coherence significantly. The […]


Continue.. Modeling phonon-mediated quasiparticle poisoning in superconducting qubit arrays

Modeling phonon-mediated quasiparticle poisoning in superconducting qubit arrays

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Eric Yelton, Clayton P. Larson, Vito Iaia, Kenneth Dodge, Guglielmo La Magna | Summary: Correlated errors caused by ionizing radiation impacting superconducting qubit chips are problematic for quantum error correction. Such impacts generate quasiparticle (QP) excitations in the qubit electrodes, which temporarily reduce qubit coherence significantly. The […]


Continue.. Modeling phonon-mediated quasiparticle poisoning in superconducting qubit arrays