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Tristan Valenzuela

@trisvasa.bsky.social

Nothing to see here

21 Followers  |  45 Following  |  4 Posts  |  Joined: 22.11.2024  |  1.9436

Latest posts by trisvasa.bsky.social on Bluesky

Ayudadnos a difundir y a llegar a nuevos oyentes ๐Ÿ˜‡๐Ÿ™๐Ÿป

01.08.2025 16:41 โ€” ๐Ÿ‘ 42    ๐Ÿ” 42    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1
Theoretical transmission spectrum for a Rb atomic vapor cell of natural abundance on the D2 line, which is subject to horizontal-linear light as a function of linear detuning.  The figure shows the transmission spectrum and at 12 discrete detuning values the polarization states of the two propagation eigenmodes. Differences between the old and new theory are seen only over a limited range of frequencies. The experimental spectrum shows excellent agreement with the new theory.

Theoretical transmission spectrum for a Rb atomic vapor cell of natural abundance on the D2 line, which is subject to horizontal-linear light as a function of linear detuning. The figure shows the transmission spectrum and at 12 discrete detuning values the polarization states of the two propagation eigenmodes. Differences between the old and new theory are seen only over a limited range of frequencies. The experimental spectrum shows excellent agreement with the new theory.

Experimental transmission spectroscopy of a natural abundance Rb vapor cell of length  2mm as a function of linear detuning. There is a 2 by 2 array of sub panels showing 4 transmission spectra for different incident linear polarization angles.

Experimental transmission spectroscopy of a natural abundance Rb vapor cell of length 2mm as a function of linear detuning. There is a 2 by 2 array of sub panels showing 4 transmission spectra for different incident linear polarization angles.

Theoretical transmission spectru for a Rb atomic vapor cell of natural abundance on the D
 line, which is subject to vertical-linear light as a function of linear detuning. Polarisation eigenmodes are shown at 14 discrete frequencies. Differences between the old and new theory are seen over a broad range of frequencies. The experimental spectrum shows excellent agreement with the new theory.

Theoretical transmission spectru for a Rb atomic vapor cell of natural abundance on the D line, which is subject to vertical-linear light as a function of linear detuning. Polarisation eigenmodes are shown at 14 discrete frequencies. Differences between the old and new theory are seen over a broad range of frequencies. The experimental spectrum shows excellent agreement with the new theory.

Hot off the press!
Light propagation through an atomic vapor in the presence of a magnetic field of arbitrary direction.
opg.optica.org/oe/fulltext....
Performed with colleagues at
@durhamqlm.bsky.social @wrathmall.bsky.social

Atoms, lasers, magnets!

๐Ÿงช #physics โš›๏ธ #optics ๐Ÿ’ก

22.07.2025 18:25 โ€” ๐Ÿ‘ 12    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Sprite o espectro rojo capturado desde la Estaciรณn Espacial Internacional por la astronauta Nichole Ayers โ€ข โ€ผ๏ธ๐Ÿ‘ฉ๐Ÿปโ€๐Ÿš€ #FotoCiencia
โžก๏ธ es.wikipedia.org/wiki/Espectr...

05.07.2025 08:14 โ€” ๐Ÿ‘ 34    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Experimentology cover: title and curves for distributions.

Experimentology cover: title and curves for distributions.

Experimentology is out today!!! A group of us wrote a free online textbook for experimental methods, available at experimentology.io - the idea was to integrate open science into all aspects of the experimental workflow from planning to design, analysis, and writing.

01.07.2025 18:25 โ€” ๐Ÿ‘ 522    ๐Ÿ” 225    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 15
A precision measurement science mystery - new physics or incomplete calculations? Again, as a distraction from persistently concerning news, here is a science mystery of which I was previously unaware. The role of approxim...

๐Ÿงชโš›๏ธ There is a serious disagreement btw experiment and theory in understanding the ionization energy of a particularly excited state of helium. This is one to watch, though caution is always advised, as anomalies like this historically tend to go away. nanoscale.blogspot.com/2025/06/a-pr...

07.06.2025 18:58 โ€” ๐Ÿ‘ 7    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The @physicsworld.bsky.social Quantum Briefing 2025 is out now โ€” your essential guide to the latest breakthroughs, big ideas, and bold questions shaping the quantum frontier.

๐Ÿ”— physicsworld.com/p/magazine/a...

#QuantumPhysics #QuantumTech #PhysicsWorld #ScienceReading

16.05.2025 14:14 โ€” ๐Ÿ‘ 13    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Anyone involved in publishing, reading, writing or editing scientific papers should read this argument against generative AI carefully.

10.05.2025 10:13 โ€” ๐Ÿ‘ 35    ๐Ÿ” 16    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
Preview
Multi-axis inertial sensing with 2D matter-wave arrays Atom interferometry is an exquisite measurement technique sensitive to inertial forces. However, it is commonly limited to a single sensitive axis, allowing high-precision multi-dimensional sensingโ€ฆ

When Knut tried to to something completely different, he came across an interesting arrangement using matter-wave arrays to do inertial sensing and EM field measurements - read up here
#quantum #quantumsensing

Multi-axis inertial sensing with 2D matter-wave arrays quantumsensing.de/2025/04/15/m...

15.04.2025 06:46 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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How academics imagine their lives would look like if they decide to work in tech

11.04.2025 19:15 โ€” ๐Ÿ‘ 9033    ๐Ÿ” 1078    ๐Ÿ’ฌ 320    ๐Ÿ“Œ 293
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UKRI budget allocations confirmed for 2025 to 2026 Today, the Science and Technology Secretary, Peter Kyle, confirmed how UK Research and Innovationโ€™s (UKRI) budget will be allocated to all UKRIโ€™s councils and key programmes.

Today, the Science and Technology Secretary confirmed how UKRI's budget will be allocated to all our councils and key programmes.

Find out more and read our budget explainer: www.ukri.org/news/ukri-bu...

04.04.2025 09:26 โ€” ๐Ÿ‘ 10    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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This was a training exercise for the one in 2026

29.03.2025 20:06 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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#arXiv Long-Baseline Atom Interferometry https://arxiv.org/abs/2503.21366 The Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Proto-Collaboration: gravitational waves in the frequency range around 1 Hz are not covered by present and planned detectors using laser interferometry

28.03.2025 11:56 โ€” ๐Ÿ‘ 2    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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#Nature Down-converted photon pairs in a high-Q silicon nitride microresonator www.nature.com/articles/s41... SPDC with an on-chip rate of 0.8 million pairs per second in Si3N4, combining strong light-field inside a high Q-factor microcavity with an optically induced space-charge field.

19.03.2025 18:52 โ€” ๐Ÿ‘ 2    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Electromagnetically Induced Transparency | Toni Rubio
YouTube video by Quantum Spain Electromagnetically Induced Transparency | Toni Rubio

The two-part video series on "Electromagnetically induced transparency" (EIT) is now online!
The videos were done in collaboration with the Barcelona Quantum Master and @quantumspain.bsky.social, showing a setup that we built at @icfo.eu.

19.03.2025 17:49 โ€” ๐Ÿ‘ 4    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
ACMC โ€“ Ankara Condensed Matter Colloquium Email

The talk will be online. Details are: acmc.bilkent.edu.tr

02.03.2025 17:23 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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I'll be giving a talk on Tuesday at the Ankara Condensed Matter Colloquium about using quantum memories in space and how microgravity can enhance their performance.

02.03.2025 17:22 โ€” ๐Ÿ‘ 9    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Big news! Weโ€™ve just launched some new accounts ๐ŸŽ‰

Give them a follow:
๐Ÿ”ญ @esascience.esa.int
๐Ÿง‘โ€๐Ÿš€ @esaexploration.esa.int
๐Ÿš€ @esatransport.esa.int
๐ŸŒ @esaearth.esa.int
๐Ÿ“ก @esaoperations.esa.int
โš™๏ธ @esatechnology.esa.int
๐Ÿ›ฐ๏ธ @esaconnectivity.esa.int

Stay tuned for exciting things ahead! ๐Ÿ’™โœจ

04.02.2025 14:41 โ€” ๐Ÿ‘ 1374    ๐Ÿ” 456    ๐Ÿ’ฌ 48    ๐Ÿ“Œ 57
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RFK Jr key adviser petitioned regulators to revoke approval of polio vaccine Aaron Siri is helping Trumpโ€™s health secretary pick to select top jobs despite long history of attacking vaccines

๐Ÿค”

RFK Jr key adviser petitioned regulators to revoke approval of polio vaccine www.theguardian.com/us-news/2024...

25.01.2025 19:00 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Que cosa fuera....

22.01.2025 01:19 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Bad Honnef Physics School on "Ultracold Quantum Matterโ€œ to be held at the Physics Center in Bad Honnef, Germany during the period August 10 โ€“ 16, 2025.
www.dpg-physik.de/veranstaltun...

17.01.2025 11:30 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Really excited that our new paper doi.org/10.1103/Phys... kicks off 2025 well! Amazingly itโ€™s a key part of only chapter 5 of first author Alan Bregazziโ€™s PhD thesis stax.strath.ac.uk/concern/thes..., and work carried out with James McGilligan, @780nm.bsky.social and Erling Riis.

02.01.2025 19:59 โ€” ๐Ÿ‘ 9    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Estamos a un telediario de que ยซIdiocraciaยป sea un documental...

14.01.2025 14:40 โ€” ๐Ÿ‘ 9    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

In particular if they are in awkward positions of a complex setup where you don't have the choice of the orientation of your head

14.01.2025 21:31 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@trisvasa is following 20 prominent accounts