In honor of Earth Day: a thread of environmental wins

The graphic displays an image of a laptop with the Earth emerging from the screen. The graphic reads: "Virtual & Accessible Earth Day 2026 Rally Organized by Stand Up for Science, Today! Starts 8PM ET. Register at the link in bio." The graphic also contains the Stand Up for Science and EARTHDAY.ORG logo.

Today is the day! Join us at 8:00 PM ET for our Virtual & Accessible Earth Day 2026 Rally to defend our planet, our health, and our future. Hear from lawmakers, experts, and activists leading the fight and find out how to take action. Register at this link: zurl.co/ZsB53

#EarthDay #EarthDay2026

There have been quite a few of those by now...and the YouTube channel is getting close to 1000 subscribers, which is nice!
We will be around this Friday with another seminar
#AttoFridays #QuantumBattles

Some flower pictures to clean the timeline. #Spring #EdenProject #Nature

PS: Earrings from the Sunday market in Praca da Republica, Belem, PA, Brazil. This is a way to support Indigenous artisans.

I tend to wear Native American or African jewellery & my natural hair when running the #AttoFridays seminar series. Without making a fuss about it, this is a way to influence what is understood as "professional" or not. Here is a sneak peek from behind the scenes.
www.youtube.com/@QuantumBatt...

Undergraduate students beside their poster on Chaotic Dynamics (from left to right, blond woman, blond man, two Indian women + tall Chinese guy)

Kuddos to the group project students I worked with this spring. They produced excellent work on chaotic dynamics within ca 2 months. Here are they presenting their poster!

This has been a busy spring & there is more on the way!

Interferometrically Enhanced Asymmetry in Strong-field Ionization with Bright Squeezed Vacuum We demonstrate that quantum light statistics can be used to control strong-field ionization at the tunneling step. Using a bichromatic linearly polarized field composed of a strong coherent driver and...

3)This is the 1st from the APIQuL (Attosecond Photoelectron Imaging with Quantum Light) collaboration - with Tom Rook, Pahul Singh & Javier Rivera-Dean -, in which we show BSV light statistics can be used to enhance asymmetry in photoelectron momentum distributions - a lot!
arxiv.org/abs/2604.12646

Physics-informed neural networks for solving saddle-point equations in strong-field physics with tailored fields We develop an unsupervised physics-informed neural network to solve saddle-point equations (SPEs) governing direct above-threshold ionization (ATI) within the strong-field approximation. This setting ...

2) Here we looked at a bottleneck in above-threshold ionization: how to solve saddle-point equations for fields of arbitrary shapes. We used neural networks for that & temporal windows. This is the 1st paper by Jiakang Chen (new PhD student), with Sufia Hashim as well:
arxiv.org/abs/2603.15786

Here r a few preprints/papers from 2026: 🧵

1) We (Sufia Hashim and I) assess two-electron quantum interference with more than one excitation channel. B/c the number of processes was too large for analytical conditions, we used statistical measures to compare images
journals.aps.org/prresearch/a...

It is of course unconscious and very different from "oops, it slipped", but would the word occur to a Black person as an intrusive thought?

Fair point. I am trying to understand the issue, which honestly I don't. I still wonder what brings the intrusive thought there and why he and the public were not protected.

I am no expert on this condition, but my question is exactly yours: what brought this intrusive thought there? How someone swears & the words they use tell a lot about their minds.

Indigenous Resistance Forces Brazil To Revoke Amazon Waterway Decree After 33 Days of Occupation | Amazon Watch “This proves that life – the river – has no price. It cannot be sold, it is not negotiable. That’s why we will never back down.”

#TapajosVivo #Amazonia
The fight continues, but it is important to celebrate our victories.
💚✊🏹

To register follow this link: us02web.zoom.us/webinar/regi...

We are looking forward to this #AttoFridays season

Read the whole thread 👇🧵
Bringing all online was an insane amount of work for uni staff.

Que absurdo. E a cara de pau ha' alguns meses, durante a #COP30 foi de matar. Isso tem que parar #SOSAmazonia

Realmente, e' horrivel. Existe um prazer sadico em querer ver as pessoas sofrerem.

Ainda falta revogar essa maldita lei, mas e' um começo. Fico insultada como a #Amazonia e' vista como uma colônia, seja por governos de direita ou de esquerda. E sim, estou de saco cheio de marxistas do sudeste falando no lugar das pessoas do Norte. E' uma farsa colossal!
#SaveTheTapajosRiver

This destruction has been like this forever. #Amazonia is viewed as a colony to be plundered, also by many Brazilians. I was happy that the COP30 was in Belem, but I couldn't shake the feeling that our voices are never heard. What a farce!

#SaveTheTapajósRiver #RevogaDecreto12600

The Tapajós River is not just water, it is memory, food, culture, and life. Sending so much love with the Indigenous people of the Baixo Tapajós who are currently fighting against dredging and all projects that threaten their future.

Bom dia 👇

Seminar poster with my picture (woman of mix Black heritage in a red jumper with somewhat frizzy hair) on the left, a photoelectron spectrum on the right, abstract in the middle and a title "Exploring Quantum Interference in the Attosecond Domain" on top, a green heart in the top right corner.

I have really enjoyed this outreach event. It was great to be a speaker in the Physics Undergraduate Seminar at UCL, and talk to so many enthusiastic students with great (and unusual) questions. Hopefully I could be of help!

Sunset on the beach with a person and a cow on the foreground

Ferry boat crossing a river, beach and someone fishing

Birds having breakfast on a swamp - three hornbills and a white ibis

Kingfisher sitting on a branch

Here are a few pictures from Goa, India, to clean up the timeline. We all need that from time to time 😊

Had a great time at the 2025 IAMNOP in Delhi (plenary talk & session chair). It was great to see the pictures and meet the vibrant Indian Physics community. And yes, I look more and more like my paternal grandmother, lol.

News headlines in Hindi about the US attacks in Venezuela, with aeroplanes and a wheelchair in the background. The picture shows a map of South America, Trump and Maduro.

News headlines in Hindi about the US attacks in Venezuela, with aeroplanes and a wheelchair in the background. The picture shows Trump, Maduro, explosions and Trump entering something that looks like a war room.

When you are coming back from paradise and reality smacks you in the face. On Saturday, while waiting for my connection to Delhi. As a South American, this is particularly triggering. For more info see, e.g., en.wikipedia.org/wiki/United_...

Sunset at the beach in Goa, India, where I spent the holidays after an international conference in Delhi.

2025 was about starting a new research area, renewal in many ways, and reconnecting with my Amazonian roots. It brought success, recognition, help from unexpected places, nasty surprises from collaborators and the necessity to realign myself once more. Happy New Year everyone, despite everything!

Beautiful place. Where is it? Happy New Year!

Woman of mixed Black heritage in front of a Xmas tree wearing red glasses, a read jumper, dark blue jacket and a red scarf

I wish all of you strangers a great holiday season with a festive enough picture. I will go offline soon, but not before leaving my best wishes. May 2026 be less weird than 2025, and treat everyone with more kindness. Take care!