output
19922026
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations

Showing 2009Show all

39 papers · 1 filter

gr-qc2009★ 17 cited

The Brown-York mass and the Thorne hoop conjecture

Niall O Murchadha, Roh-Suan Tung, Naqing Xie +1

The Thorne hoop conjecture is an attempt to make precise the notion that gravitational collapse occurs if enough energy is compressed into a small enough volume, with the `size' be…

cond-mat.mes-hall2009★ 3 cited

Comment on "Electron transport through correlated molecules computed using the time-independent Wigner function: Two critical tests"

J. C. Greer, P. Delaney, G. Fagas

The many electron correlated scattering (MECS) approach to quantum electronic transport was investigated in the linear response regime [I. Baldea and H. Koeppel, Phys. Rev. B. 78,…

cs.CC2009

On the computational complexity of spiking neural P systems

Turlough Neary

It is shown that there is no standard spiking neural P system that simulates Turing machines with less than exponential time and space overheads. The spiking neural P systems consi…

astro-ph.CO2009★ 26 cited

High-frequency radio polarization measurements of WMAP point sources

N. Jackson, I. W. A. Browne, R. A. Battye +2

We present polarization measurements at 8.4, 22, and 43 GHz made with the VLA of a complete sample of extragalactic sources stronger than 1 Jy in the 5-year WMAP catalogue and with…

cond-mat.quant-gas2009★ 21 cited

Vortex entanglement in Bose-Einstein condensates coupled to Laguerre-Gauss beams

N. Lo Gullo, S. McEndoo, Th. Busch +1

We study the establishment of vortex entanglement in remote and weakly interacting Bose Einstein condensates. We consider a two-mode photonic resource entangled in its orbital angu…

cs.CC2009★ 6 cited

A boundary between universality and non-universality in spiking neural P systems

Turlough Neary

In this work we offer a significant improvement on the previous smallest spiking neural P systems and solve the problem of finding the smallest possible extended spiking neural P s…