u/SoumyadipNayak

▲ 21 r/bsnl

CPGRAMS is a lifesaver

So, around three months ago, I shifted my secondary SIM from Airtel to BSNL. I was regretting the decision heavily due to trash call quality, unmaintained portals, and lengthy unclear procedures. But, I really changed my mind after roaming around the country for some days. Previously I had used Jio and Airtel together and their performance was always similar at every place, where they worked they both worked like a charm, where they didn't, neither of them worked (I think Arunachal will be an exception because in some areas only Airtel and BSNL has network). Surprisingly, BSNL has a great outdoor 4G coverage in almost all the areas I visited and more surprisingly 4G on BSNL always delivered (places where Jio really struggles in internet). So, I chose to retain the BSNL SIM. But, now I have to visit Jammu so I had to upgrade both my SIMs to postpaid. Jio was seamless process as usual, but now comes that lengthy BSNL trauma again! The CSC took my application along with security deposit for upgrading and said they are having an 'application update' so conversion might take some time. I was okay because I still have time. Surprisingly, they suspended my prepaid connection on the same day, but did not activate postpaid even the next day. I contacted CSC and they kept delaying. I became familiar with CPGRAMS portal very recently, so I decided to give it a shot, and guess what? My SIM is upgraded to postpaid and activated today morning. So, I genuinely feel, CPGRAMS is a useful portal to skip and stop the bureaucracy at BSNL.

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u/SoumyadipNayak — 3 days ago

Possible application of Quantum Information

Recently, I was thinking where Quantum Computing might have a real world impact after recent advancements in Quantum Computing. The use cases include many, but I was searching for something related to fundamental sciences.

In this quest, I came across a lecture given by Prof. David Tong at The Royal Institution about Quantum Field 9 years back. It explains the Standard Model with 12 fundamental particles, 4 fields and Dirac equation that explains all the experiments that we can carry out ourselves. However, it can't explain a lot of things happening in the universe, things influenced by dark matter, dark energy and an event that marks the initial period of the universe termed as inflation. He further talked about the importance of Large Hadron Collider in finding the Higgs Boson particle and field; which explains the gravitational force and field.

The conclusion of the video was about what comes next and he discussed 3 possible ways. That's the part where I seem to find my answer. He believes that, the answer to the unexplainable observations might be hidden in Dirac equation itself, it's just that we have to look through a different perspective. However, LHC operations are too cost and resource heavy for a government to sponsor these experiments and one of the possible ways was Quantum Information.

This video was posted 9 years back when Quantum Computing was really in it's infant phase but with recent advancements, we've hardwares and algorithms that are much better at Quantum Simulation . Maybe we can use these tools to understand and explain the unexplainable? What are your thoughts?

Also, here is the link to the lecture: https://youtu.be/zNVQfWC\_evg?si=NxRKlgliLilSKZNX

reddit.com
u/SoumyadipNayak — 8 days ago
▲ 3 r/QuantumComputing+2 crossposts

Query regarding measurement of particle properties at distance

Hi everyone,

I have recently started exploring quantum field theory and wathed an YouTube video as an intro https://youtu.be/MmG2ah5Df4g?si=_if3RURxWFqH3xZq Although, I seem to understand most of the things explained here, I had one query. In the introduction section at around 1:15, the creator seems to claim a family of particle (example electrons) exhibit same property all around the universe. My query is, how is this conclusion drawn? How can we measure properties of these particles (say electron) on a different part of universe (say a distant galaxy)?

u/SoumyadipNayak — 8 days ago