Alan Guth

Physics American 1947 423 quotes

Proposed the theory of cosmic inflation, a modification of the Big Bang theory.

Most quoted

"If you ask where the energy for the Big Bang came from, the answer from inflation is that gravitational energy can be negative, and it can exactly cancel the positive energy of matter."

— from Lecture

"The inflationary universe theory says that the universe began as a tiny speck of false vacuum, which then inflated exponentially to become the enormous universe we see today."

— from Scientific paper/lecture

"The universe is like a giant puzzle, and we're slowly putting the pieces together. But sometimes we find a piece that doesn't fit, and then we have to start all over again."

— from Lecture

All quotes by Alan Guth (423)

Gravitational waves could detect primordial inflation.

Article 2014

Science isn't about being right the first time.

Speech 2005

The reheating phase after inflation is crucial for particle production.

Paper 1982

Personal curiosity drives scientific discovery.

Reflection 1999

Inflation explains why the universe is so homogeneous.

The Inflationary Universe 1981

Quantum mechanics in curved spacetime is key to inflation.

Thesis-related 1980

The multiverse challenges our notion of uniqueness.

Interview 2013

Experiments like Planck have tested inflation beautifully.

Comment 2013

Balance between theory and observation is essential.

Lecture 2001

Slow-roll inflation is the simplest viable model.

Paper 1985

Mentorship shaped my career in physics.

Autobiography 2016

The scalar field, the inflaton, drives expansion.

The Inflationary Universe 1981

Cosmic variance limits some tests of inflation.

Article 1995

Innovation comes from questioning assumptions.

Speech 2009

The universe's origin is a profound mystery.

Interview 1988

Chaotic inflation allows diverse universes.

Paper 1983

Public understanding of science matters.

Talk 2011

Tensor modes in CMB are inflation's signature.

Paper 2000

Persistence pays off in theoretical pursuits.

Reflection 1994

Inflationary perturbations are nearly scale-invariant.

Calculation 1982