arXiv:2402.09435v1 Announce Type: new
Abstract: Black bounces are spacetimes that can be interpreted as either black holes or wormholes depending on specific parameters. In this study, we examine the Simpson-Visser and Bardeen-type solutions as black bounces and investigate the gravitational wave in the background of these solutions. We then explore the displacement and velocity memory effects by analyzing the deviation of two neighboring geodesics and their derivatives influenced by the magnetic charge parameter a. This investigation aims to trace the magnetic charge in the gravitational memory effect. Additionally, we consider another family of traversable wormhole solutions obtained from non-exotic matter sources to trace the electric charge Qe in the gravitational memory effect, which can be determined from the far field asymptotic. This project is significant not only for detecting the presence of compact objects like wormholes through gravitational memory effects but also for observing the charge Qe, which provides a concrete realization of Wheeler’s concept of “electric charge without charge.”
Investigating Black Bounces and Gravitational Waves
In this study, we delve into the fascinating concept of black bounces – spacetimes that can be interpreted as both black holes and wormholes depending on certain parameters. Specifically, we examine two types of solutions known as the Simpson-Visser and Bardeen-type solutions, treating them as black bounces. Our goal is to understand the behavior of gravitational waves in the background of these solutions.
Analyzing Displacement and Velocity Memory Effects
To gain deeper insights, we focus on the displacement and velocity memory effects by studying the deviation between two neighboring geodesics and their derivatives, which are influenced by the magnetic charge parameter known as a. By tracing the magnetic charge, we aim to uncover its role in the gravitational memory effect.
Non-Exotic Traversable Wormholes and Electric Charge
In addition to investigating black bounces, we also explore another family of traversable wormhole solutions obtained from non-exotic matter sources. Here, our aim is to trace the electric charge Qe in the gravitational memory effect, which can be determined from the far field asymptotic.
Future Roadmap: Challenges and Opportunities
- Challenges: The investigation of black bounces and their gravitational wave behavior presents some challenges. Understanding the complex dynamics of spacetime, particularly when it can be interpreted as both a black hole and a wormhole, requires advanced mathematical techniques and in-depth analysis.
- Opportunities: Despite the challenges, our research offers exciting opportunities. By studying displacement and velocity memory effects, we may gain valuable insights into the characteristics and nature of black bounces. Additionally, tracing the magnetic charge and electric charge in the gravitational memory effect can potentially lead to the detection and observation of compact objects like wormholes and Wheeler’s concept of “electric charge without charge.”
Conclusion
This project holds significant scientific importance. Through our investigation of black bounces, gravitational waves, and memory effects, we aim to contribute to our understanding of the fundamental nature of spacetime. Furthermore, the potential detection of wormholes and observation of electric charge without charge would mark major milestones in astrophysics and shape our understanding of the universe.