Program

All talks will be streamed online. The coordinates will be provided to registered participants by email.

All dates and times are local to Bloomington, Indiana, USA.

Note that Bloomington switches to Daylight Savings Time on the weekend before LVGR'25.
Local clocks advance one hour between Saturday March 8 and Sunday March 9.
All LVGR'25 sessions on are on Eastern Daylight Savings Time (EDT).

This page last updated March 12, 2025


THURSDAY MARCH 13, 2025

Opening session
chaired by Alysson Ferrari (UF ABC)

08:45-09:00
Welcoming Remarks
Mark Messier, Chair, Physics Department
Mike Snow, Director, IUCSS
Ralf Lehnert, IUCSS

09:00-09:25
Robert Bluhm (Colby)
Backgrounds and Explicit Breaking

09:25-09:50
Yu-Xiao Liu (Lanzhou U)
Black-Hole Solutions in Bumblebee Gravity

09:50-10:15
Albin Nilsson (CTPU-CGA)
A New Perturbative Black-Hole Solution and Constraints on Explicit Diffeomorphism Breaking in Gravity

10:15-10:40
Dhruba Jyoti Gogoi (Moran Coll)
Violation of Hod's Conjecture in Einstein Gauss-Bonnet Bumblebee Theory of Gravity

10:40-11:00
Break

Thurday morning session 2
chaired by Agnes Roberts (IUCSS)

11:00-11:25
Rui Xu (Tsinghua U)
FLRW Cosmology in a Bumblebee Gravity Model

11:25-11:50
Jay Tasson (Carleton)
Gravitational Waves in the SME

11:50-12:15
Ali Ovgun (Eastern Mediterranean)
Lorentz-Violation Effects on Bumblebee Black-Hole Shadows: Insights From EHT Data and Deflection Angles

12:15-12:40
Neil Russell (Northern Michigan)
SME-Based Limits on Torsion and Nonmetricity

12:40-14:00
Break

Thurday afternoon session
chaired by Yunhua Ding (Ohio Wesleyan)

14:00-14:25
Brett Altschul (South Carolina)
Gravitational Distortions as Sources of Vacuum Cerenkov Radiation

14:25-14:50
Marco Schreck (UF Maranhao)
Hamiltonian Formulation for Explicit and Spontaneous Spacetime-Symmetry Violations

14:50-15:15
Albert Petrov (UF Paraiba)
Dynamical Lorentz-Symmetry Breaking in a Scale-Free Theory of Gravity

15:15-15:40
Carlos Reyes (U Bio-Bio)
Explicit Backgrounds in Cosmology


FRIDAY MARCH 14, 2025

Friday morning session 1
chaired by Ali Ovgun (Eastern Mediterranean)

08:35-09:00
Alan Kostelecky (Indiana)
Gravitational Aspects of Lorentz Violation

09:00-09:25
Shu-Xu Yi (IHEP)
Constraining Theories Beyond GR with GW and Multi-Messenger Observations: The Propagation Effects

09:25-09:50
Tao Zhu (Zhejiang U Technol)
Constraints on Lorentz and Parity Violations in Gravity with Gravitational Waves

09:50-10:15
Umananda Dev Goswami (Dibrugarh U)
Lorentz-Symmetry Violation and Cosmological Implications

10:15-10:40
Dongfeng Gao (Chinese Academy)
Constraining the Spin-Gravity Coupling Effects With Atom Interferometers

10:40-11:00
Break

Friday morning session 2
chaired by Jay Tasson (Carleton)

11:00-11:25
Zhi Xiao (NCEP U)
Some Preliminary Results on the Asymptotic Behavior of Lorentz-Violating Photon Fields

11:25-11:50
Salvatore Capozziello (U Naples)
Resonant Graviton-Photon Transitions With Cosmological Stochastic Magnetic Field

11:50-12:15
Hollis Williams (U Warwick)
Lorentz-Violating Pseudovectors in Effective Field Theories for Quantum Gravity

12:15-12:40
Quentin Bailey (Embry Riddle)
Recent Work on Spontaneous Lorentz-Symmetry Breaking and Black-Hole Physics

12:40-14:00
Break

Friday afternoon session
chaired by Nathan Sherrill (Hannover U)

14:00-14:15
Samy Aoulad Lafkih (SYRTE)
Gravitational Waves in the Presence of Lorentz-Invariance Violations

14:15-14:30
Joao dos Santos (UF Maranhao)
Hamiltonian Formulation of Modified Gravity with Spontaneous Spacetime-Symmetry Violation

14:30-14:45
Cesar Riquelme (U Bio-Bio)
Explicit and Spontaneous Background Fields in Modified Gravity

14:45-15:00
Ivan Perez (CINVESTAV)
Probing Discrete Symmetries in Lorentz-Violating Scenarios: Gravitational Effects

15:00-15:15
Facundo Lopez and Owen Zhang (Carleton)
Complete-Coverage Searches for Lorentz Violation in the Minimal Matter Sector

15:15-15:30
Caitlyn Holl and Will Lankenau (Carleton)
Extending the Breadth of SME Searches in the Muon Sector

15:30
Ralf Lehnert (IUCSS)
Closing Remarks