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Hashmitha

@physicla.bsky.social

21 |量子物理学者| Between vivid dreams and memories, It's all poetry and physics ✨️| #PhotonicQuantumComputing #QuantumOptics

75 Followers  |  288 Following  |  16 Posts  |  Joined: 04.12.2024  |  2.7006

Latest posts by physicla.bsky.social on Bluesky

Two mathematical definitions: those of the Fourier transform of a two dimensional function; and that of the inverse Fourier transform.

Two mathematical definitions: those of the Fourier transform of a two dimensional function; and that of the inverse Fourier transform.

In this week’s Fourier Optics course we shall be looking at diffraction.
The central idea is:
decompose an arbitrary light distribution in one plane into a sum of plane waves with Fourier transform to solve the Helmholtz equation for light propagation.
🧪 #physics ⚛️ #optics 💡 #iTeachPhysics 🎢

19.01.2025 10:37 — 👍 27    🔁 2    💬 4    📌 1
Preview
Modeling Entanglement-Based Quantum Key Distribution for the NASA Quantum Communications Analysis Suite One of the most practical, and sought after, applications of quantum mechanics in the field of information science is the use of entanglement distribution to communicate quantum information effectivel...

A new paper introduces a Monte Carlo-based model for quantum key distribution to verify NASA's Quantum Communications Analysis Suite, showing preliminary agreement with experimental data and supporting advancements for quantum communications in aeronautics and space.
arxiv.org/abs/2501.08476

16.01.2025 14:00 — 👍 1    🔁 1    💬 1    📌 0
Spins and single photons

A good read on probing spins with single photons.

jablab2.case.edu/singlephoton...

04.01.2025 18:32 — 👍 3    🔁 0    💬 0    📌 0

Cheers! 💫

04.01.2025 18:18 — 👍 2    🔁 0    💬 0    📌 0

Same same 🤧😭. And it all feels incomplete now!

04.01.2025 17:44 — 👍 1    🔁 0    💬 0    📌 0
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: ) ♡

03.01.2025 17:21 — 👍 2    🔁 0    💬 1    📌 0
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Population inversion of Jaynes- Cummings model on Matlab using number states, coherent states and NSFCS. Had a nice time : )

03.01.2025 16:39 — 👍 3    🔁 0    💬 1    📌 0
FLP Vol. I Table of Contents If it does not open, or only shows you this message again, then please let us know:

The Feynman Lectures on Physics are completely Free online. Read them here:

Volume 1: feynmanlectures.caltech.edu/I_toc.html

Volume 2: feynmanlectures.caltech.edu/II_toc.html

Volume 3: feynmanlectures.caltech.edu/III_toc.html

via @physinhistory.bsky.social

29.12.2024 19:50 — 👍 291    🔁 59    💬 16    📌 6

An international team of scientists, led by Dr. Lukas Bruder from the University of Freiburg, has successfully generated and controlled hybrid electron-photon #quantum states—known as “dressed states”—in helium atoms using intense extreme ultraviolet (EUV) light pulses.

13.12.2024 02:40 — 👍 1    🔁 1    💬 1    📌 0

Wow 😂

29.12.2024 05:54 — 👍 1    🔁 0    💬 0    📌 0
A Schrödinger cat state of a harmonic oscillator
YouTube video by Quantum Physics Corner A Schrödinger cat state of a harmonic oscillator

Cat states- a superposition of coherent states is the key to cat qubits!

youtu.be/RJciGUMqnj4?...

27.12.2024 19:58 — 👍 2    🔁 0    💬 0    📌 0
Post image 24.12.2024 17:22 — 👍 2    🔁 0    💬 0    📌 0
Celso J. Villas-Boas: Photons in the Darkness
YouTube video by QUINFOG CSIC Celso J. Villas-Boas: Photons in the Darkness

youtu.be/4KIzP7-vXBQ?...

24.12.2024 17:12 — 👍 2    🔁 0    💬 0    📌 0
Post image https://youtu.be/4KIzP7-vXBQ?si=KiuRH_6f9Hn_tp0j

https://youtu.be/4KIzP7-vXBQ?si=KiuRH_6f9Hn_tp0j

Classically, constructive and destructive interferences are a result of in-phase and out-of-phase wave superposition. But as of quantum theory, every measurement process out to consider the measuring device itself. That's, interferences are defined on the basis of the interaction of light and matter

24.12.2024 17:12 — 👍 2    🔁 0    💬 3    📌 0

Same : )

23.12.2024 14:41 — 👍 2    🔁 0    💬 1    📌 0
A photo showing an integrated photonic chip, wire-bonded to a printed circuit board with an Australian two-dollar coin placed for scale reference. The micron-sized metal wires are serving their purpose for electronic-photonics interactions.

Image credit: Alvaro Casas Bedoya, University of Sydney

A photo showing an integrated photonic chip, wire-bonded to a printed circuit board with an Australian two-dollar coin placed for scale reference. The micron-sized metal wires are serving their purpose for electronic-photonics interactions. Image credit: Alvaro Casas Bedoya, University of Sydney

#Physics #art 13 - "Silicon Photonic Chip" - photo by Alvaro Casas Bedoya and Ben Eggleton (@profbeneggleton.bsky.social)

The image shows an integrated photonic chip, wire-bonded to a printed circuit board with an Australian two-dollar coin placed for scale reference.

⚛️ Explanation below ⚛️

15.12.2024 20:42 — 👍 18    🔁 4    💬 1    📌 0

Interesting!

15.12.2024 13:21 — 👍 2    🔁 0    💬 0    📌 0

🙋‍♀️

08.12.2024 17:56 — 👍 0    🔁 0    💬 0    📌 0

Interesting!

08.12.2024 17:54 — 👍 1    🔁 0    💬 0    📌 0

Yessssss

08.12.2024 17:52 — 👍 1    🔁 0    💬 0    📌 0
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Introducing (Dynamical) Lie Algebras for quantum practitioners | PennyLane Demos A gentle introduction to Lie theory covering the basics of Lie algebras and Lie groups in the context of quantum computing.

I tried to write up an intro to (dynamical) Lie algebras for quantum practicioners as the topic keeps poping up

pennylane.ai/qml/demos/tu...

18.11.2024 09:40 — 👍 38    🔁 10    💬 3    📌 1
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Observation of a Multimode Displaced Squeezed State in High-Harmonic Generation High harmonic generation is a resource of extremely broad frequency combs of ultrashort light pulses. The non-classical nature of this new quantum source has been recently evidenced in semiconductors ...

New pre-print out! Following up on our most recent work, we analyse the nonclassical state from high-harmonic generation. Estimation of the squeezer distribution and Schmidt number further confirm HHG as a promising quantum source of light.

arxiv.org/abs/2411.02311

05.11.2024 07:15 — 👍 3    🔁 1    💬 0    📌 0
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Hello Bluesky, I’m Hashmitha, a Quantum Computing Enthusiast with a deep interest in Photonic Quantum Computing and Quantum Optics.

Here's today's read : ) ♡

08.12.2024 16:47 — 👍 8    🔁 0    💬 1    📌 0

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