9 citations · 30 across the 13 of their papers we have counts for
10 papers · 1 filter
Redshifting the Cosmological Constant in Unimodular Gravity via Nonlinear Quantum Mechanics
David E. Kaplan, Surjeet Rajendran
The cosmological constant problem represents a profound conflict between quantum field theory and general relativity. Unimodular gravity offers a compelling starting point by de-gr…
A Solution to the Hierarchy Problem with Non-Linear Quantum Mechanics
David E. Kaplan, Surjeet Rajendran
We argue that the hierarchy problem of the standard model of particle physics can be solved by adding a state-dependent term to the Higgs sector. We present an example of a scalar…
What can solve the Strong CP problem?
David E. Kaplan, Tom Melia, Surjeet Rajendran
Three possible strategies have been advocated to solve the strong CP problem. The first is the axion, a dynamical mechanism that relaxes any initial value of the CP violating angle…
Probing Long-Range Forces Between Neutrinos with Cosmic Structures
David E. Kaplan, Xuheng Luo, Surjeet Rajendran
We study the consequences of new long-range forces between neutrinos on cosmic scales. If these forces are a few orders of magnitude stronger than gravity, they can induce perturba…
Search for monopole-dipole interactions with atom interferometry
Mahiro Abe, Jason M. Hogan, David E. Kaplan +2
Light, weakly coupled bosonic particles such as axions can mediate long range monopole-dipole interactions between matter and spins. We propose a new experimental method using atom…
Indirect Searches for Ultraheavy Dark Matter in the Time Domain
David E. Kaplan, Xuheng Luo, Ngan H. Nguyen +2
Dark matter may exist today in the form of ultraheavy composite bound states. Collisions between such dark matter states can release intense bursts of radiation that includes gamma…
Cosmological Consequences of Unconstrained Gravity and Electromagnetism
Loris Del Grosso, David E Kaplan, Tom Melia +3
Motivated by the quantum description of gauge theories, we study the cosmological effects of relaxing the Hamiltonian and momentum constraints in general relativity and Gauss' law…
Fireball anti-nucleosynthesis
Michael A. Fedderke, David E. Kaplan, Anubhav Mathur +2
The tentative identification of approximately ten relativistic anti-helium cosmic-ray events at AMS-02 would, if confirmed, challenge our understanding of the astrophysical synthes…
Searching for axion forces with spin precession in atoms and molecules
Prateek Agrawal, Nicholas R. Hutzler, David E. Kaplan +2
We propose to use atoms and molecules as quantum sensors of axion-mediated monopole-dipole forces. We show that electron spin precession experiments using atomic and molecular beam…
GALILEO: Galactic Axion Laser Interferometer Leveraging Electro-Optics
Reza Ebadi, David E. Kaplan, Surjeet Rajendran +1
We propose a novel experimental method for probing light dark matter candidates. We show that an electro-optical material's refractive index is modified in the presence of a cohere…