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@qubitbm.bsky.social

8 Followers  |  20 Following  |  8 Posts  |  Joined: 06.11.2025  |  1.6652

Latest posts by qubitbm.bsky.social on Bluesky

Many of the potential applications of Hamiltonian simulation are not algorithms themselves, but rather, the idea that having a better understanding of certain physical or chemical systems would likely lead to new scientific and technological breakthroughs. Some of these are well worked out ideas (for example, nitrogen fixation [RWS+17]), but many of them are very tenuous, which unfortunately does not stop popular science news, and technology-enthusiasts who have decided to make a career talking a lot about quantum computing without really understanding it, from treating such applications as being just around the corner. You will find headlines and ted talks claiming quantum computers can solve every futuristic-sounding problem, including fixing climate change [mtl], curing cancer [Kak24], and finding the secret to immortality [Gre20]. I mean, science could solve any of these (but could it?), and faster Hamiltonian simulation would mean we can do better science, so. . . The reality is, there probably will be many applications to being able to simulate physical systems, but we do not yet know what they will be. We will not discuss applications of Hamiltonian simulation in this course, but it is important to understand that there is a lot of hype around quantum computing, some of which is justified, and some of which is not.

Many of the potential applications of Hamiltonian simulation are not algorithms themselves, but rather, the idea that having a better understanding of certain physical or chemical systems would likely lead to new scientific and technological breakthroughs. Some of these are well worked out ideas (for example, nitrogen fixation [RWS+17]), but many of them are very tenuous, which unfortunately does not stop popular science news, and technology-enthusiasts who have decided to make a career talking a lot about quantum computing without really understanding it, from treating such applications as being just around the corner. You will find headlines and ted talks claiming quantum computers can solve every futuristic-sounding problem, including fixing climate change [mtl], curing cancer [Kak24], and finding the secret to immortality [Gre20]. I mean, science could solve any of these (but could it?), and faster Hamiltonian simulation would mean we can do better science, so. . . The reality is, there probably will be many applications to being able to simulate physical systems, but we do not yet know what they will be. We will not discuss applications of Hamiltonian simulation in this course, but it is important to understand that there is a lot of hype around quantum computing, some of which is justified, and some of which is not.

Just LOVE the "Advanced Quantum Algorithms" lecture notes of Stacey Jeffery!!!
homepages.cwi.nl/~jeffery/not...
Everyone teaching quantum computing should read this paragraph out loud to their students!
homepages.cwi.nl/~jeffery/not...

06.02.2026 09:32 — 👍 23    🔁 4    💬 2    📌 0
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Caught these rare Light Pillars dancing in the sub-zero air. It happens when flat ice crystals (diamond dust) turn the sky into a giant mirror, reflecting city lights into vertical beams. Pure magic at -20°C! 🌌📸#LightPillars #AtmosphericOptics #NightPhotography #WinterMagic

05.02.2026 21:38 — 👍 0    🔁 0    💬 0    📌 0
https://arxiv.org/abs/2601.05315 arXiv abstract link

Fundamental Limitations on the Reliabilities of Power and Work in Quantum Batteries
https://arxiv.org/pdf/2601.05315
Brij Mohan, Tanmoy Pandit, Maciej Lewenstein, Manabendra Nath Bera.

12.01.2026 07:44 — 👍 1    🔁 1    💬 0    📌 0

See our work on quantum batteries! We shown that fluctuion of work and power follow a tradeoff relation in quantum batteries. Additional we have also found that high power is accompanied by high fluctuations in power. #quantumtech #energystorage #quantum #batteries #quantumdevices #quantumscience

12.01.2026 13:54 — 👍 0    🔁 0    💬 0    📌 0

Indian academic institutions and PIs are scrambling around #ANRF #NPDF, which is understandable. But this chaos exposes how severely underfunded they are. Many cannot even afford a postdoc in their groups. #STEM Research funding must increase in reality, not just on paper.

10.01.2026 01:41 — 👍 0    🔁 0    💬 0    📌 0
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दिसंबर!

30.12.2025 01:42 — 👍 0    🔁 0    💬 0    📌 0
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This year, I published articles on quantum speed limits, thermodynamics, quantum dynamics, and non Markovianity. #2025

24.12.2025 20:20 — 👍 2    🔁 0    💬 0    📌 0
Exact quantum speed limits The traditional quantum speed limits are not attainable for many physical processes, as they tend to be loose and fail to determine the exact time taken by quantum systems to evolve. To address this w...

The well known time-energy uncertainty relation follows from the Robertson uncertainty relation, also known as the Mandelstam Tamm bound. We derive an exact time-energy uncertainty relation, which is an exact relation rather than an inequality.
@PhysRevA
journals.aps.org/pra/abstract...

11.12.2025 22:24 — 👍 0    🔁 0    💬 0    📌 0
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feeling sad 😔 is a crime here 😎🎉 #Finland 🇫🇮

22.11.2025 21:44 — 👍 0    🔁 0    💬 0    📌 0
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❄️ बर्फ और ☀️ सुनहरी धूप! 😇

21.11.2025 21:52 — 👍 2    🔁 0    💬 0    📌 0

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