X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States

Posted by dbos MIT

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Luigi Pacciani, Dawoon E. Kim, Riccardo Middei, Herman L. Marshall, | Summary: We report the Imaging X-ray Polarimetry Explorer (IXPE) polarimetric and simultaneous multiwavelength observations of the high-energy-peaked BL Lacertae (HBL) object 1ES 1959+650, performed in 2022 October and 2023 August. In 2022 October IXPE measured […]


Continue.. X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States

X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States

Posted by dbos MIT

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Luigi Pacciani, Dawoon E. Kim, Riccardo Middei, Herman L. Marshall, Alan P. Marscher | Summary: We report the Imaging X-ray Polarimetry Explorer (IXPE) polarimetric and simultaneous multiwavelength observations of the high-energy-peaked BL Lacertae (HBL) object 1ES 1959+650, performed in 2022 October and 2023 August. In 2022 […]


Continue.. X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States

Timing-injection locking in a self-starting Mamyshev oscillator induced by the dissipative Faraday instability

Posted by klaurent Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Changqing Li, Changqing Li, , , | Summary: Mamyshev oscillators (MOs), a novel class of passively mode-locked fiber lasers, serve as an excellent platform to explore complex nonlinear dynamics, ranging from localized structures to chaos. Despite their versatility, achieving self-starting mode-locking remains a significant challenge. In this […]


Continue.. Timing-injection locking in a self-starting Mamyshev oscillator induced by the dissipative Faraday instability

Timing-injection locking in a self-starting Mamyshev oscillator induced by the dissipative Faraday instability

Posted by klaurent Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Changqing Li, Ran Xia, Yutai Zhao, Yifang Li, Jia Liu | Summary: Mamyshev oscillators (MOs), a novel class of passively mode-locked fiber lasers, serve as an excellent platform to explore complex nonlinear dynamics, ranging from localized sturctures to chaos. Despite their versatility, achieving self-starting mode-locking remains a […]


Continue.. Timing-injection locking in a self-starting Mamyshev oscillator induced by the dissipative Faraday instability

Exponential quantum speedups for near-term molecular electronic structure methods

Posted by klaurent Berkeley

Kavli Affiliate: Birgitta Whaley | Summary:We prove classical simulation hardness, under the generalized $mathsfPneqmathsfNP$ conjecture, for quantum circuit families with applications in near-term chemical ground state estimation. The proof exploits a connection to particle number conserving matchgate circuits with fermionic magic state inputs, which are shown to be universal for quantum computation under post-selection, and […]


Continue.. Exponential quantum speedups for near-term molecular electronic structure methods

Exponential quantum speedups in quantum chemistry with linear depth

Posted by klaurent Berkeley

Kavli Affiliate: Birgitta Whaley | Summary:We prove classical simulation hardness, under the generalized $mathsfPneqmathsfNP$ conjecture, for quantum circuit families with applications in near-term chemical ground state estimation. The proof exploits a connection to particle number conserving matchgate circuits with fermionic magic state inputs, which are shown to be universal for quantum computation under post-selection, and […]


Continue.. Exponential quantum speedups in quantum chemistry with linear depth

The Parallel Ionizing Emissivity Survey (PIE). I. Survey design and selection of candidate Lyman Continuum leakers at 3.1

Posted by klaurent Chicago

Kavli Affiliate: Wayne Hu| First 5 Authors: Alexander Beckett, Alexander Beckett, , , | Summary:We present the survey design and initial results from the Parallel Ionizing Emissivity (PIE) survey. PIE is a large HST survey designed to detect Lyman continuum (LyC) emitting galaxies at 3.1$<$ z $<$3.5 and stack their images in order to measure […]


Continue.. The Parallel Ionizing Emissivity Survey (PIE). I. Survey design and selection of candidate Lyman Continuum leakers at 3.1

Feature Statistics with Uncertainty Help Adversarial Robustness

Posted by dbos Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Ran Wang, Xinlei Zhou, Meng Hu, Rihao Li, Wenhui Wu | Summary: Despite the remarkable success of deep neural networks (DNNs), the security threat of adversarial attacks poses a significant challenge to the reliability of DNNs. In this paper, both theoretically and empirically, we discover a universal […]


Continue.. Feature Statistics with Uncertainty Help Adversarial Robustness

Feature Statistics with Uncertainty Help Adversarial Robustness

Posted by klaurent Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Ran Wang, Xinlei Zhou, Rihao Li, Meng Hu, Wenhui Wu | Summary: Despite the remarkable success of deep neural networks (DNNs), the security threat of adversarial attacks poses a significant challenge to the reliability of DNNs. By introducing randomness into different parts of DNNs, stochastic methods can […]


Continue.. Feature Statistics with Uncertainty Help Adversarial Robustness

Certified randomness using a trapped-ion quantum processor

Posted by klaurent Cornell

Kavli Affiliate: Jeffrey Moses| First 5 Authors: Minzhao Liu, Minzhao Liu, , , | Summary:While quantum computers have the potential to perform a wide range of practically important tasks beyond the capabilities of classical computers, realizing this potential remains a challenge. One such task is to use an untrusted remote device to generate random bits […]


Continue.. Certified randomness using a trapped-ion quantum processor