Halo Formation from Yukawa Forces in the Very Early Universe

Kavli Affiliate: Misao Sasaki | First 5 Authors: , , , , | Summary: If long-range attractive forces exist and are stronger than gravity then cosmic halo formation can begin in the radiation-dominated era. We study a simple realization of this effect in a system where dark matter fermions have Yukawa interactions mediated by scalar […]


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On the mechanism of polaritonic rate suppression from quantum transition paths

Kavli Affiliate: David T. Limmer | First 5 Authors: Michelle C. Anderson, Esmae J. Woods, Thomas P. Fay, David J. Wales, David T. Limmer | Summary: Polariton chemistry holds promise for facilitating mode-selective chemical reactions, but the underlying mechanism behind the rate modifications observed under vibrational strong coupling is not well understood. Using the recently […]


Continue.. On the mechanism of polaritonic rate suppression from quantum transition paths

On the mechanism of polaritonic rate suppression from quantum transition paths

Kavli Affiliate: David T. Limmer | First 5 Authors: Michelle C. Anderson, Esmae J. Woods, Thomas P. Fay, David J. Wales, David T. Limmer | Summary: Polariton chemistry holds promise for facilitating mode-selective chemical reactions, but the underlying mechanism behind the rate modifications observed under vibrational strong coupling is not well understood. Using the recently […]


Continue.. On the mechanism of polaritonic rate suppression from quantum transition paths

On the mechanism of polaritonic rate suppression from quantum transition paths

Kavli Affiliate: David T. Limmer | First 5 Authors: Michelle C. Anderson, Esmae J. Woods, Thomas P. Fay, David J. Wales, David T. Limmer | Summary: Polariton chemistry holds promise for facilitating mode-selective chemical reactions, but the underlying mechanism behind the rate modifications observed under vibrational strong coupling is not well understood. Using the recently […]


Continue.. On the mechanism of polaritonic rate suppression from quantum transition paths

The effect of scatter of polymer chain length on strength

Kavli Affiliate: Zhigang Suo | First 5 Authors: Manyuan Tao, Shawn Lavoie, Zhigang Suo, Maria K. Cameron, | Summary: A polymer network fractures by breaking covalent bonds, but the experimentally measured strength of the polymer network is orders of magnitude lower than the strength of covalent bonds. We investigate the effect of statistical variation of […]


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X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

Kavli Affiliate: Herman Marshall | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer ({IXPE}) in the high-soft emission state of the black hole X-ray binary 4U 1630–47. The highly significant detection (at $approx50sigma$ confidence level) […]


Continue.. X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

Kavli Affiliate: Herman Marshall | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer ({IXPE}) in the high-soft emission state of the black hole X-ray binary 4U 1630–47. The highly significant detection (at $approx50sigma$ confidence level) […]


Continue.. X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

Kavli Affiliate: Herman Marshall | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer ({IXPE}) in the high-soft emission state of the black hole X-ray binary 4U 1630–47. The highly significant detection (at $approx50sigma$ confidence level) […]


Continue.. X-ray Polarization of the Black Hole X-ray Binary 4U 1630-47 Challenges Standard Thin Accretion Disk Scenario

The high polarisation of the X-rays from the Black Hole X-ray Binary 4U 1630-47 challenges standard thin accretion disc scenario

Kavli Affiliate: Herman Marshall | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large, energy-dependent X-ray polarisation is observed in 4U 1630-47, a black hole in an X-ray binary, in the high-soft emission state. In this state, X-ray emission is believed to be dominated by a thermal, geometrically […]


Continue.. The high polarisation of the X-rays from the Black Hole X-ray Binary 4U 1630-47 challenges standard thin accretion disc scenario

The high polarisation of the X-rays from the Black Hole X-ray Binary 4U 1630-47 challenges standard thin accretion disc scenario

Kavli Affiliate: Roger Romani | First 5 Authors: Ajay Ratheesh, Michal Dovčiak, Henric Krawczynski, Jakub Podgorný, Lorenzo Marra | Summary: Large, energy-dependent X-ray polarisation is observed in 4U 1630-47, a black hole in an X-ray binary, in the high-soft emission state. In this state, X-ray emission is believed to be dominated by a thermal, geometrically […]


Continue.. The high polarisation of the X-rays from the Black Hole X-ray Binary 4U 1630-47 challenges standard thin accretion disc scenario