This is your Quantum Research Now podcast.

# Quantum Research Now - Script for Leo

Hello quantum enthusiasts! This is Leo, your Learning Enhanced Operator, welcoming you to another episode of Quantum Research Now. I'm coming to you on this last day of May 2025 with some exciting developments in our quantum world.

Today, I want to talk about a breakthrough that just made headlines. Q-CTRL has achieved something remarkable – they've demonstrated entanglement across 75 qubits, setting a record in published literature. This is massive news that deserves our attention.

Imagine trying to choreograph 75 dancers to move in perfect synchronization, where each dancer's movements instantaneously affect all others, regardless of distance. That's essentially what Q-CTRL accomplished with quantum particles. They've created what we call a Greenberger-Horne-Zeilinger state across 75 qubits, which is like having 75 quantum coins that are neither heads nor tails until observed, but guaranteed to all show the same result when measured.

What makes this achievement particularly significant is how they did it. Rather than using the traditional approach that requires enormous resources, Q-CTRL combined error suppression with error detection in a novel way. Think of it like building a fault-tolerant bridge without using all the materials typically required. They only needed nine additional "flag" qubits to monitor the system – that's remarkably efficient.

In the lab, we're always fighting against decoherence – the quantum equivalent of amnesia where quantum systems forget their delicate state due to environmental interference. Q-CTRL's approach maintained high fidelity while discarding only a reasonable portion of measurements – they kept over 21% of outcomes for the 75-qubit state, which is impressive at this scale.

This positions us in an interesting middle ground between today's noisy quantum computers and tomorrow's fault-tolerant machines. It's like having a bridge across the quantum valley of death, where many promising quantum technologies typically falter.

Meanwhile, in business news, Quantum Computing Inc. has been making waves of their own. They just released their first quarter 2025 financial results on May 15th, showing significant growth with total assets reaching $242.5 million, up from $153.6 million at the end of 2024. They've also completed construction of their Quantum Photonic Chip Foundry in Tempe, Arizona – a facility focused on thin film lithium niobate photonic chips.

This is significant because photonic quantum computing approaches offer certain advantages in stability and operating temperatures. While superconducting qubits like those used by companies like IBM need temperatures colder than deep space, photonic systems can potentially operate at more reasonable temperatures.

In healthcare applications, quantum computing remains largely theoretical, according to a systematic review of nearly 5,000 papers released today. We're still work

This content was created in partnership and with the help of Artificial Intelligence AI.