activity
19942026
most citedThe Cosmological Constant

2.6k citations · 2.7k across the 5 of their papers we have counts for

collaborators

5 papers

gr-qc2026

Toward a Phenomenologically Acceptable Quantum Cyclic Universe

Sean M. Carroll, Nadiia Diachenko, Saakshi Dulani

We put forward a quantum model of cosmology that is exactly periodic but avoids the Boltzmann Brain problem. If the universe is described by a quantum state evolving unitarily in a…

gr-qc2025★ 6 cited

What Hawking Radiation Looks Like as You Fall into a Black Hole

Christopher J. Shallue, Sean M. Carroll

We study the measurements of a freely falling Unruh-DeWitt particle detector near the horizon of a semiclassical Schwarzschild black hole. Our results show that the detector's resp…

hep-th2024★ 2 cited

Holographic phenomenology via overlapping degrees of freedom

Oliver Friedrich, ChunJun Cao, Sean M. Carroll +2

The holographic principle suggests that regions of space contain fewer physical degrees of freedom than would be implied by conventional quantum field theory. Meanwhile, in Hilbert…

astro-ph2000★ 2.6k cited

The Cosmological Constant

Sean M. Carroll

This is a review of the physics and cosmology of the cosmological constant. Focusing on recent developments, I present a pedagogical overview of cosmology in the presence of a cosm…

gr-qc1994★ 62 cited

Energy-Momentum Restrictions on the Creation of Gott Time Machines

Sean M. Carroll, Edward Farhi, Alan H. Guth +1

The discovery by Gott of a remarkably simple spacetime with closed timelike curves (CTC's) provides a tool for investigating how the creation of time machines is prevented in class…