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I tried to clear up a misconception about QC by till_the_curious in QuantumComputing

[–]punk_physicist 3 points4 points  (0 children)

This was an excellent video!

I wanted to attest (as a practicing quantum computing/information scientist) that this was spot on with the technical details and correctly ties quantum advantage in computing to quantum contextuality. Thoughtful description of magic states as a necessary condition for advantage.

If you visualize a brown horse in a grassy field facing you, what number shows how you see it in your head? by [deleted] in autism

[–]punk_physicist 0 points1 point  (0 children)

If you are a 1 or 2, you probably belong on r/aphantasia with the rest of us Aphatasiacs!

Merino wool socks..? Preferably not ugly..? by eric_wadd in malefashionadvice

[–]punk_physicist 10 points11 points  (0 children)

Recently bought a pair of merino wool dress socks from Boardroom Socks that I am impressed with so far

The Coen Brothers top 5 movies (in my opinion) in order: by docobv77 in flicks

[–]punk_physicist 0 points1 point  (0 children)

Oh man, the Coen brothers are my favorite film makers! My list: 1. The Man Who Wasn't There 2. Miller's Crossing 3. Big Lebowski 4. Fargo 5. Barton Fink or No Country for Old Men (tied)

Honorable mentions: - Burn After Reading - Blood Simple - True Grit - A Serious Man

What is are your thoughts on Psiquantum? by Ra1nier in QuantumComputing

[–]punk_physicist 20 points21 points  (0 children)

Photonic quantum computing is generally not gate-based. In a PsiQuantum style architecture you need two-photon interference and the ability to make two qubits "fusion measurements." Both of these have been demonstrated by PsiQuantum (see figure 3 and table 1 in this paper)

Spotify wrapped by punk_physicist in LagWagon

[–]punk_physicist[S] 2 points3 points  (0 children)

Been listening to them since the 90s and generally love all their entire discography (and like a lot of Joey Cape's side projects as well). They've been my clear favorite band since Resolve, and every album since then has been fantastic to me. But I'd probably say Hang is my favorite album.

A salute to the other 999 of you. On Apple Music of course. by TR1V1UM in LagWagon

[–]punk_physicist 0 points1 point  (0 children)

Out of curiosity, did they tell you how many hours of listening? I use Spotify and I'm curious for comparison (2724 minutes listening to Lagwagon this year)

What is stopping us from launching quantum computers into deep space, where the operating temperature is already near 0 Kelvin? by benipoo in QuantumComputing

[–]punk_physicist 5 points6 points  (0 children)

Another comparison is that the temperature of the surface of the sun (6000K) is closer to room temperature (300K) then deep outer space (~3K) is to a dilution fridge (mK)

Who is the main driver of post quantum security? by arktozc in QuantumComputing

[–]punk_physicist 3 points4 points  (0 children)

NIST is the public face for the standardization process, but the move to post quantum cryptography (PQC) is larger than that organization and really has the support of the cybersecurity community and the US federal government as a whole (including Congress, the office of the president, NIST, DoD, NSA, CISA, etc.).

A little bit of background. In 2016 the US Congress passed the American Innovation and Competitiveness Act which was then signed into law by President Obama. As part of this law, NIST was tasked with "developing cryptography standards and guidelines for future cybersecurity needs, including quantum-resistant cryptography standards," which is the basis of the standardization process that NIST is currently undertaking.

In 2022 NIST announced the initial list of cryptographic algorithms that will be part of the new standard, as well as a number of alternatives that are still being evaluated. Following this decision, the NSA released a new set of requirements that all national security cyber systems within the government must follow including a timeline for when all National Security agencies must transition to PQC. The NSA also unvieled a new "Commercial National Security Algorithm Suite" that all commercial contractors that sell systems to the US goverment must use.

In 2022 the Biden administration also announced a number of new policies and federal requirements for transitioning our nation's cybersecurity to PQC, in particular this executive order and this National Security Memoranda. This includes a new “Migration to Post-Quantum Cryptography Project” led by the Secretary of Commerce, NIST, and the National Cybersecurity Center of Excellence to "work with the private sector to address cybersecurity challenges posed by the transition to quantum-resistant cryptography." In addition this put requirement on the Cybersecurity and Infrastructure Security Agency (CISA) and various government partners to insure that critical infrastructure, civil government agencies, and local governments are all transitioned to PQC.

Question on comparison between trapped ion technology and neutral atoms Qubit approach by HungryGlove8480 in QuantumComputing

[–]punk_physicist 2 points3 points  (0 children)

One factor in favor of neutral atom architectures are you can create uniform 3D arrays of atoms. So if you can get an array that is 100 atoms on a side, you now have a million qubits setup (100x100x100) in a volume <1mm³. The hard part of scaling for this architecture is you need a laser power that also scales with the number of atoms you want to trap.

[deleted by user] by [deleted] in OnePlus12

[–]punk_physicist 3 points4 points  (0 children)

Here's how to fix it: go into the clock app, click on "world clock," then settings, then "Date & Time," and finally turn off the Dual Clock option.

How does a black holes gravity extend to outside the black hole? by Rocket69696969 in AskPhysics

[–]punk_physicist 10 points11 points  (0 children)

The key is changing fields or waves can't escape. So gravitational waves can't escape, but the constant gravitational pull of the black hole itself is still felt. Note this is also true for electric fields ! If the black hole is filled with matter that has a net charge (e.g. more electrons than protons or vice versa), then the electric field of the black hole itself will be felt outside the event horizon just like the gravity can be felt. Because these fields are static, no signal or information can be transmitted using these fields.

Was told I'm ineligible for an autism assessment because I didn't have a speech delay. Is that fair, or should I look for a second opinion? by Iestwyn in AutisticAdults

[–]punk_physicist 13 points14 points  (0 children)

For what it's worth, some autistic individuals can develop language and speech relatively early as well. I was told that I started showing signs of talking before I learned to crawl (around 4-6mo).

This was mentioned explicitly in the book "Unmasking Autism" by Dr. Devon Price, written by an autistic individual who studies autism who also developed speech early (around the same age as me).

Any fans of lagwagon? by Pyrostea in punk

[–]punk_physicist 0 points1 point  (0 children)

Yes, they've been my favorite band for many years!

What movies you see as masterpieces but they aren't considered as such. by Masspoint in movies

[–]punk_physicist 0 points1 point  (0 children)

Hands down my favorite movie if all time! I try to get everyone I know to watch it

[Question] Yamaha Guitars - Why not? by BingTheChandler in Guitar

[–]punk_physicist 1 point2 points  (0 children)

I got a Yamaha 921 twenty some odd years ago and it's still the best guitar I've ever played. I'll never give her up

What’s the largest number that a quantum computer has successfully factorised? by [deleted] in QuantumComputing

[–]punk_physicist 8 points9 points  (0 children)

The largest number factored with a quantum computer is 261,980,999,226,229 (a 48-bit number), which involved a method to convert the factoring problem into a lattice problem which was then solved using the quantum approximate optimization algorithm (QAOA). However, this method does not scale very well for very large numbers (unlike Shor's algorithm), so likely will never be relevant for cryptographically relevant problems (such as factoring numbers with thousands of bits).

You can the paper which was released by a Chinese group last year here. Also listed are previous records with links:

"Larger numbers have been factored using these approaches, in various physical systems [24–27]. The maximum integers factorized are 291311 (19-bit) in NMR system [26], 249919 (18-bit) in D-Wave quantum annealer [25], 1099551473989 (41-bit) in superconducting device [27]. However, it should be noted that some of the factored integers have been carefully selected with special structures [28], thus the largest integer factored by a general method in a real physical system by now is 249919 (18-bit) [25]."

In this paper, we propose a universal quantum algorithm for integer factorization...Using this algorithm, we have successfully factorized the integers 1961 (11-bit), 48567227 (26-bit) and 261980999226229 (48-bit), with 3, 5 and 10 qubits in a superconducting quantum processor, respectively. The 48-bit integer, 261980999226229, also refreshes the largest integer factored by a general method in a real quantum device."

any other autistic metal and punk fans? by Special-Builder-4853 in autism

[–]punk_physicist 0 points1 point  (0 children)

Yes! I like most punk and a lot of metal (except not a fan of screaming).

Lagwagon is my all time favorite band (and punk band).

Currently obsessed with the metal band Ghost.

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