New #Paper published in Quantum: Mutually Unbiased Bases in Composite Dimensions – A Review

https://quantum-journal.org/papers/q-2026-04-01-2051/

#OpenScience #Quantum #Research

#Research Group Birgit Stiller “#Quantum Optoacoustics”
 
Light and sound can interact in optical fibers, enabling applications ranging from photonic machine learning to #QuantumTechnologies.
A prerequisite for interactions in the quantum regime is the so-called strong coupling regime. MPL scientists have predicted and measured it in an optical fiber. This paves the way for in-line quantum signal processing.
 
👉 https://mpl.mpg.de/research-at-mpl/independent-research-groups/quantum-optoacoustics
 
📸 Laura Blázquez Martínez
 
#science #photonics

New #Paper published in Quantum: Metrologically optimal quantum states under noise

https://quantum-journal.org/papers/q-2026-04-01-2050/

#OpenScience #Quantum #Research

Metrologically optimal quantum states under noise

Chao Yin, Victor V. Albert, and Sisi Zhou, Quantum 10, 2050 (2026). We propose a class of metrological resource states whose quantum Fisher information scales optimally in both system size and noise rate. In these states, qubits are partitioned into sensing…

Quantum

New #Paper published in Quantum: Comparing classical and quantum conditional disclosure of secrets

https://quantum-journal.org/papers/q-2026-04-01-2049/

#OpenScience #Quantum #Research

Comparing classical and quantum conditional disclosure of secrets

Uma Girish, Alex May, Leo Orshansky, and Chris Waddell, Quantum 10, 2049 (2026). The conditional disclosure of secrets (CDS) setting is among the most basic primitives studied in information-theoretic cryptography. Motivated by a connection to non-local quantum computati…

Quantum
Experimental computing adjacent device improves significantly upon all previous instantiations:
#quantum #encabulation #podcast #TurboEncabulator #IEE #computing #RetroComputing #technology
Subject: Medical. Bonus: Everett-Wheeler multiverse.

Well, today was interesting. See the attached chart. Guess where I am on the chart. Hint: The answer and the story suggest that Everett-Wheeler worlds might be real.

I spent Tuesday afternoon, March 31, 2026, traveling to get the results from a recent overnight sleep test. There was one surprise.

I have sleep apnea. A lot of people do. Perhaps you or a family member are one of them.

The condition ranges from minor to fatal. This is what Princess Leia died of, though it's not as direct as that. The condition places stress on the cardiovascular system. That can be enough to finish you by itself. Or other conditions can step in. If that happens, that's all she wrote.

I have an "interruptions per hour" number that is classified as "severe". This means that I'll need to get a #CPAP machine again. The number isn't a surprise. I've had a sleep study and a CPAP before [in the 2010s].

But my night-time oxygen saturation level is so low that I've probably already died. Here's the thing: I've most likely been at the level discussed further down for 5 years. I'm not sure that that is possible.

So, I might be living in an Everett branch. People who have read about the Copenhagen Interpretation, Schrödinger's Cat, and Everett-Wheeler are familiar with the concept.

My number "indicates severe hypoxemia". This leads to "rapid and catastrophic declines in tissue oxygenation. One result is organ damage. The heart tries to compensate for hypoxemia by increasing cardiac output, leading to tachycardia, arrhythmias, and, in chronic cases, pulmonary hypertension and right-sided heart failure."

My case is chronic. This suggests that I'm already pushing up daisies. So, that's great.

I'm supposed to get oxygen "immediately". It's classified as an emergency. But I don't think that I'm supposed to go to the E.R. This leaves the question of where I should go to get the oxygen. I see that Walmart sells portable oxygen concentrators, but I'm not sure that that's the same thing.

My specialist's office said that they didn't "vend" and that they didn't know where to go to get the oxygen.

Note: To be clear, the key people at the office were patient and as helpful as possible. I have no complaint about that.

My #HMO, presently one of the Blue Shield plans, should know. But I've been trying to reach my "clinical care coordinator" at the HMO for a full month as of this week.

Note: The care coordinator is the person that you're supposed to speak with for issues that will require more than one phone call.

I know that my care coordinator, Edgar, is receiving my voicemails. However, he's only tried to call me back once.

A few hours ago, I spoke with a nice HMO Member Services person, Claudia. She said that she'd try to get a "care navigator", the level below care coordinator, to phone me tomorrow [April 01, 2026].

The care navigator might try to help. It'll be April Fools Day. I'm not sure if that's a positive sign or not.

After the HMO call, I fell asleep for two hours. Two-hour naps are common for me. Now, here I am, ready to fedi. I'll fedi on my dedi until sleep again is ready.

I have a few people in IRC tonight as well as the fedi dedi. A jug of water. Hydration is good. There's an apple a few yards away. I'm set for a couple of hours. I appreciate the basics these days.

#aging #apnea #medical #quantum
A Google whitepaper co-authored with the Ethereum Foundation and Stanford researchers reveals quantum computers could break Bitcoin and Ethereum cryptography with just 500,000 qubits - a 20-fold reduction from previous estimates. Billions in crypto assets face new attack vectors. https://thedefiant.io/news/research-and-opinion/google-quantum-ai-paper-rewrites-threat-timeline-for-bitcoin-ethereum-security #Blockchain #Crypto #Quantum #Bitcoin #Ethereum
Google Quantum AI Paper Rewrites Threat Timeline for Bitcoin, Ethereum Security

A whitepaper co-authored with the Ethereum Foundation and Stanford researchers slashes qubit estimates by 20x, warns that billions in crypto assets are exposed to multiple attack vectors, and urges an immediate industry pivot to post-quantum cryptography.

The Defiant

Scientists used a quantum computer to model an “impossible” molecule that can’t be made classically, demonstrating quantum tech’s unique power for simulating complex chemical systems and hinting at big implications for materials and chemistry research

#Quantum #QuantumComputing #technology #Science

🔗 Discover more: https://www.forbes.com/sites/moorinsights/2026/03/30/quantum-computing-built-an-impossible-molecule---with-big-implications/#:~:text=Quantum%20Computing%20Built%20An%20Impossible%20Molecule%20%E2%80%94%20With%20Big%20Implications

Quantum Computing Built An Impossible Molecule — With Big Implications

An international team of scientists proved the never-before-seen molecule's exotic nature using a quantum computer, potentially ushering in new scientific opportunities.

Forbes

CavilinQ raised $8.8M in seed funding to build the interconnect layer for scalable quantum systems, aiming to link quantum processors and improve performance. The investment signals growing interest in foundational quantum infrastructure.

#Quantum #QuantumComputing #technology #Science

🔗 Discover more: https://thequantuminsider.com/2026/03/31/cavilinq-raises-8-8m-quantum-interconnect/#:~:text=CavilinQ%20Secures%20%248.8M%20Seed%20Round%20To%20Architect%20The%20Interconnect%20Layer%20For%20Scalable%20Quantum%20Systems

CavilinQ Secures $8.8M Seed Round to Architect the Interconnect Layer for Scalable Quantum Systems

CavilinQ raises $8.8M to develop quantum interconnect hardware, enabling scalable systems by linking multiple processors into distributed architectures.

The Quantum Insider

QuSecure is collaborating with NIST’s National Cybersecurity Center of Excellence to tackle post‑quantum cryptography migration, helping organizations adopt quantum‑safe algorithms ahead of future threats.

#Quantum #QuantumComputing #technology #Science

🔗 Discover more: https://thequantuminsider.com/2026/03/31/qusecure-nist-post-quantum-cryptography-migration/#:~:text=QuSecure%20Collaborating%20With%20NIST%E2%80%99s%20National%20Cybersecurity%20Center%20Of%20Excellence%20To%20Address%20Post%2DQuantum%20Algorithm%20Migration

QuSecure Collaborating with NIST’s National Cybersecurity Center of Excellence to Address Post-Quantum Algorithm Migration

QuSecure joins NIST’s NCCoE project to support migration to post-quantum cryptography, focusing on identifying risks and improving implementation strategies.

The Quantum Insider