Ben Leather
@benleather.bsky.social
Marie Sklodowska-Curie Postdoctoral fellow, University of Southampton.
IG: @ben_leather
Web: http://benjaminleather.com
IG: @ben_leather
Web: http://benjaminleather.com
After an incredible few years, my time at the AEI has come to an end. I’m grateful for the lovely memories and collaborators I’ve had the privilege to work with.
I’m excited to start a new chapter as a Marie Sklodowska-Curie Postdoctoral Fellow at the University of Southampton.
I’m excited to start a new chapter as a Marie Sklodowska-Curie Postdoctoral Fellow at the University of Southampton.
August 1, 2025 at 11:14 AM
After an incredible few years, my time at the AEI has come to an end. I’m grateful for the lovely memories and collaborators I’ve had the privilege to work with.
I’m excited to start a new chapter as a Marie Sklodowska-Curie Postdoctoral Fellow at the University of Southampton.
I’m excited to start a new chapter as a Marie Sklodowska-Curie Postdoctoral Fellow at the University of Southampton.
Our recent work on Quadratic Quasinormal Mode Dependence on Linear Mode Parity has now been published in Physical Review Letters!
journals.aps.org/prl/pdf/10.1...
🧪🔭⚛️
journals.aps.org/prl/pdf/10.1...
🧪🔭⚛️
February 16, 2025 at 1:40 PM
Our recent work on Quadratic Quasinormal Mode Dependence on Linear Mode Parity has now been published in Physical Review Letters!
journals.aps.org/prl/pdf/10.1...
🧪🔭⚛️
journals.aps.org/prl/pdf/10.1...
🧪🔭⚛️
I had the pleasure of experiencing @aiannucci.bsky.social’s brilliant stage adaptation of Dr. Strangelove last night.
Steve Coogan and the entire cast were outstanding, and the entire cast brought this masterpiece to the stage in incredible fashion.
One of the best things I’ve seen in years.
Steve Coogan and the entire cast were outstanding, and the entire cast brought this masterpiece to the stage in incredible fashion.
One of the best things I’ve seen in years.
February 8, 2025 at 9:38 AM
I had the pleasure of experiencing @aiannucci.bsky.social’s brilliant stage adaptation of Dr. Strangelove last night.
Steve Coogan and the entire cast were outstanding, and the entire cast brought this masterpiece to the stage in incredible fashion.
One of the best things I’ve seen in years.
Steve Coogan and the entire cast were outstanding, and the entire cast brought this masterpiece to the stage in incredible fashion.
One of the best things I’ve seen in years.
Now with added mint green hyperboloidal foliation.
November 25, 2024 at 11:52 PM
Now with added mint green hyperboloidal foliation.
6/ Next Steps
A similar Lorenz gauge metric reconstruction technique can now be implemented in Kerr. This, combined with the methods of this paper framework, paves the way for extending second-order GSF calculations to Kerr. I shall leave with you my nice Penrose diagram from the paper!
A similar Lorenz gauge metric reconstruction technique can now be implemented in Kerr. This, combined with the methods of this paper framework, paves the way for extending second-order GSF calculations to Kerr. I shall leave with you my nice Penrose diagram from the paper!
November 25, 2024 at 4:35 PM
6/ Next Steps
A similar Lorenz gauge metric reconstruction technique can now be implemented in Kerr. This, combined with the methods of this paper framework, paves the way for extending second-order GSF calculations to Kerr. I shall leave with you my nice Penrose diagram from the paper!
A similar Lorenz gauge metric reconstruction technique can now be implemented in Kerr. This, combined with the methods of this paper framework, paves the way for extending second-order GSF calculations to Kerr. I shall leave with you my nice Penrose diagram from the paper!
5/ Key Results
I reconstruct Lorenz gauge metric perturbations by gauge-transforming from the Regge-Wheeler gauge. This method calculates metric perturbations throughout the spacetime efficiently. It also enables accurate computations of fluxes, the Detweiler redshift, and self-force corrections.
I reconstruct Lorenz gauge metric perturbations by gauge-transforming from the Regge-Wheeler gauge. This method calculates metric perturbations throughout the spacetime efficiently. It also enables accurate computations of fluxes, the Detweiler redshift, and self-force corrections.
![A plot of the nonzero (conformal) BLS modes for ℓ=2 and m=2 throughout the spacetime that extends from the null-infinity (σ=0) to the horizon (σ=1). In this orbital configuration, the particle is located at σp=0.2. The field in Domain1, {D1}=[0,σp], is shown by the red curves, while the fields in Domain 2, {D2}=[σp,1], are shown by the blue curves.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ctferuogbjc5psbjfmnpyr3c/bafkreidgu65qyiuiorwev5b2kvxbluw6anehbkzaxvz4mbywbcyozau5qe@jpeg)
November 25, 2024 at 4:35 PM
5/ Key Results
I reconstruct Lorenz gauge metric perturbations by gauge-transforming from the Regge-Wheeler gauge. This method calculates metric perturbations throughout the spacetime efficiently. It also enables accurate computations of fluxes, the Detweiler redshift, and self-force corrections.
I reconstruct Lorenz gauge metric perturbations by gauge-transforming from the Regge-Wheeler gauge. This method calculates metric perturbations throughout the spacetime efficiently. It also enables accurate computations of fluxes, the Detweiler redshift, and self-force corrections.
4/ Why Lorenz Gauge?
The Lorenz gauge simplifies the regularisation of singularities in GSF by ensuring isotropic singular behaviour. It also avoids divergences at null infinity and the horizon. Critically, this gauge aligns with the current second-order GSF framework.
The Lorenz gauge simplifies the regularisation of singularities in GSF by ensuring isotropic singular behaviour. It also avoids divergences at null infinity and the horizon. Critically, this gauge aligns with the current second-order GSF framework.
November 25, 2024 at 4:35 PM
4/ Why Lorenz Gauge?
The Lorenz gauge simplifies the regularisation of singularities in GSF by ensuring isotropic singular behaviour. It also avoids divergences at null infinity and the horizon. Critically, this gauge aligns with the current second-order GSF framework.
The Lorenz gauge simplifies the regularisation of singularities in GSF by ensuring isotropic singular behaviour. It also avoids divergences at null infinity and the horizon. Critically, this gauge aligns with the current second-order GSF framework.
3/ Novel Approach
I extend hyperboloidal slicing and spectral methods from a scalar toy model to full gravitational perturbations in the Lorenz gauge. These methods allow for compactified domain calculations that efficiently span the entire spacetime.
I extend hyperboloidal slicing and spectral methods from a scalar toy model to full gravitational perturbations in the Lorenz gauge. These methods allow for compactified domain calculations that efficiently span the entire spacetime.
November 25, 2024 at 4:35 PM
3/ Novel Approach
I extend hyperboloidal slicing and spectral methods from a scalar toy model to full gravitational perturbations in the Lorenz gauge. These methods allow for compactified domain calculations that efficiently span the entire spacetime.
I extend hyperboloidal slicing and spectral methods from a scalar toy model to full gravitational perturbations in the Lorenz gauge. These methods allow for compactified domain calculations that efficiently span the entire spacetime.
1/ EMRIs and GSF
Extreme-mass-ratio inspirals (EMRIs) are key targets for future GW observatories like LISA. Their tiny mass ratios mean small corrections accumulate over thousands of orbits, making precise modelling essential. GSF theory is central to capturing these effects for accurate waveforms.
Extreme-mass-ratio inspirals (EMRIs) are key targets for future GW observatories like LISA. Their tiny mass ratios mean small corrections accumulate over thousands of orbits, making precise modelling essential. GSF theory is central to capturing these effects for accurate waveforms.
November 25, 2024 at 4:35 PM
1/ EMRIs and GSF
Extreme-mass-ratio inspirals (EMRIs) are key targets for future GW observatories like LISA. Their tiny mass ratios mean small corrections accumulate over thousands of orbits, making precise modelling essential. GSF theory is central to capturing these effects for accurate waveforms.
Extreme-mass-ratio inspirals (EMRIs) are key targets for future GW observatories like LISA. Their tiny mass ratios mean small corrections accumulate over thousands of orbits, making precise modelling essential. GSF theory is central to capturing these effects for accurate waveforms.
🎉 It's new paper day! 🎉
I'm thrilled to share my new paper: "Gravitational self-force with hyperboloidal slicing and spectral methods."
arxiv.org/pdf/2411.14976
So, what is this all about? 🧵 /6
🧪🔭⚛️ #🧮
I'm thrilled to share my new paper: "Gravitational self-force with hyperboloidal slicing and spectral methods."
arxiv.org/pdf/2411.14976
So, what is this all about? 🧵 /6
🧪🔭⚛️ #🧮
November 25, 2024 at 4:35 PM
🎉 It's new paper day! 🎉
I'm thrilled to share my new paper: "Gravitational self-force with hyperboloidal slicing and spectral methods."
arxiv.org/pdf/2411.14976
So, what is this all about? 🧵 /6
🧪🔭⚛️ #🧮
I'm thrilled to share my new paper: "Gravitational self-force with hyperboloidal slicing and spectral methods."
arxiv.org/pdf/2411.14976
So, what is this all about? 🧵 /6
🧪🔭⚛️ #🧮
In addition to physics, I am unashamedly a massive Manchester City fan, so you'll also see football here.
I encourage anyone to heed the words of @ahsannaeem.bsky.social here. We're all City! Give fellow blues a follow here.
bsky.app/profile/ahsa...
I encourage anyone to heed the words of @ahsannaeem.bsky.social here. We're all City! Give fellow blues a follow here.
bsky.app/profile/ahsa...
November 12, 2024 at 1:06 PM
In addition to physics, I am unashamedly a massive Manchester City fan, so you'll also see football here.
I encourage anyone to heed the words of @ahsannaeem.bsky.social here. We're all City! Give fellow blues a follow here.
bsky.app/profile/ahsa...
I encourage anyone to heed the words of @ahsannaeem.bsky.social here. We're all City! Give fellow blues a follow here.
bsky.app/profile/ahsa...
I also make cool figures.
November 12, 2024 at 1:06 PM
I also make cool figures.
After saying goodbye to the Bird App, I’m excited to be here on BlueSky!
I’m a postdoc from the UK based in Berlin, where I work on modelling gravitational waves from binary black holes.
What’s everyone up to on this corner of the internet?
I’m a postdoc from the UK based in Berlin, where I work on modelling gravitational waves from binary black holes.
What’s everyone up to on this corner of the internet?
November 12, 2024 at 1:06 PM
After saying goodbye to the Bird App, I’m excited to be here on BlueSky!
I’m a postdoc from the UK based in Berlin, where I work on modelling gravitational waves from binary black holes.
What’s everyone up to on this corner of the internet?
I’m a postdoc from the UK based in Berlin, where I work on modelling gravitational waves from binary black holes.
What’s everyone up to on this corner of the internet?