PsiQuantum
@psiquantum.bsky.social
Building the world’s first useful quantum computers.
We've been drawing Ψ's with photons on chips for years. Using our Omega platform we've miniaturized (x50) and improved control (>x20).
October 9, 2025 at 4:03 PM
We've been drawing Ψ's with photons on chips for years. Using our Omega platform we've miniaturized (x50) and improved control (>x20).
Our team has been developing and using the tools within Construct for nearly nine years. Now, we are making these tools available to our close partners and high-capacity users.
Learn more: psiquantum.com/software
Learn more: psiquantum.com/software
September 17, 2025 at 3:15 PM
Our team has been developing and using the tools within Construct for nearly nine years. Now, we are making these tools available to our close partners and high-capacity users.
Learn more: psiquantum.com/software
Learn more: psiquantum.com/software
We’re excited to introduce Construct, the first purpose-built software platform for fault-tolerant quantum computing.
Designing, developing, and optimizing fault-tolerant quantum algorithms.
Designing, developing, and optimizing fault-tolerant quantum algorithms.
September 17, 2025 at 3:15 PM
We’re excited to introduce Construct, the first purpose-built software platform for fault-tolerant quantum computing.
Designing, developing, and optimizing fault-tolerant quantum algorithms.
Designing, developing, and optimizing fault-tolerant quantum algorithms.
Our architecture relies on large arrays of classical lasers to drive photon sources—too many for bulky, off-the-shelf solutions to scale affordably.
We’re reducing cost by integrating classical components on-chip, using the same photonics platform we built for quantum computing.
We’re reducing cost by integrating classical components on-chip, using the same photonics platform we built for quantum computing.
June 24, 2025 at 5:24 PM
Our architecture relies on large arrays of classical lasers to drive photon sources—too many for bulky, off-the-shelf solutions to scale affordably.
We’re reducing cost by integrating classical components on-chip, using the same photonics platform we built for quantum computing.
We’re reducing cost by integrating classical components on-chip, using the same photonics platform we built for quantum computing.
From the start, we’ve been singularly focused on building fault-tolerant quantum computers at the million-qubit scale.
This year we're breaking ground on the real thing, two utility-scale quantum computers in Brisbane and Chicago.
This year we're breaking ground on the real thing, two utility-scale quantum computers in Brisbane and Chicago.
May 3, 2025 at 4:23 PM
From the start, we’ve been singularly focused on building fault-tolerant quantum computers at the million-qubit scale.
This year we're breaking ground on the real thing, two utility-scale quantum computers in Brisbane and Chicago.
This year we're breaking ground on the real thing, two utility-scale quantum computers in Brisbane and Chicago.
Our photonic qubits travel from different modules through standard optical fiber for fusion and must arrive synchronously. We can now passively control optical fiber, over the length of a mile, to a fraction of the width of a human hair—on spec for fusion-based quantum computing.
May 1, 2025 at 3:59 PM
Our photonic qubits travel from different modules through standard optical fiber for fusion and must arrive synchronously. We can now passively control optical fiber, over the length of a mile, to a fraction of the width of a human hair—on spec for fusion-based quantum computing.
Quantum computing offers a radically new approach to modeling catalytic reactions, going beyond classical approximations to capture the full complexity of chemical dynamics.
April 16, 2025 at 4:04 PM
Quantum computing offers a radically new approach to modeling catalytic reactions, going beyond classical approximations to capture the full complexity of chemical dynamics.
Before PsiQuantum, our co-founders Jeremy O’Brien and Pete Shadbolt put the very first quantum processor on the cloud.
April 9, 2025 at 3:33 PM
Before PsiQuantum, our co-founders Jeremy O’Brien and Pete Shadbolt put the very first quantum processor on the cloud.
As teams around the world begin to scale up quantum computing systems, the need to connect chips together increasingly appears as a bottleneck. Our UK team just demonstrated a time-encoded lab-to-lab qubit interconnect over 250m of standard telecom fiber with 99.6% ±0.2% fidelity.
April 3, 2025 at 3:57 PM
As teams around the world begin to scale up quantum computing systems, the need to connect chips together increasingly appears as a bottleneck. Our UK team just demonstrated a time-encoded lab-to-lab qubit interconnect over 250m of standard telecom fiber with 99.6% ±0.2% fidelity.
The next generation of our cryogenic cabinet is engineered to cool over 100 quantum chips from our Omega platform to liquid helium temperature. We will soon be welcoming this module at our facility in the UK and another cabinet at our new test and manufacturing facility in Silicon Valley.
April 1, 2025 at 4:11 PM
The next generation of our cryogenic cabinet is engineered to cool over 100 quantum chips from our Omega platform to liquid helium temperature. We will soon be welcoming this module at our facility in the UK and another cabinet at our new test and manufacturing facility in Silicon Valley.
Encouraging to see the whole field of quantum computing now beginning to take seriously the datacenter-like scaling challenges which motivated our founders to choose photons 25 years ago. Hear more from Pete Shadbolt tomorrow at NVIDIA's Quantum Day #GTC25.
March 19, 2025 at 8:40 PM
Encouraging to see the whole field of quantum computing now beginning to take seriously the datacenter-like scaling challenges which motivated our founders to choose photons 25 years ago. Hear more from Pete Shadbolt tomorrow at NVIDIA's Quantum Day #GTC25.
Leveraging pre-existing industrial wafer testers as well as bespoke cryogenic test equipment, today PsiQuantum performs ~0.5 million room-temperature measurements per month and ~50K cryogenic measurements per month.
March 14, 2025 at 4:35 PM
Leveraging pre-existing industrial wafer testers as well as bespoke cryogenic test equipment, today PsiQuantum performs ~0.5 million room-temperature measurements per month and ~50K cryogenic measurements per month.
High-throughput testing is a critical and often overlooked part of the process of scaling from breakthrough devices in a research lab to a reliable, high-volume manufacturing process suitable for building million-qubit machines.
March 14, 2025 at 4:35 PM
High-throughput testing is a critical and often overlooked part of the process of scaling from breakthrough devices in a research lab to a reliable, high-volume manufacturing process suitable for building million-qubit machines.
Photonic quantum computing has long dreamed of optical switches with well-beyond state-of-the-art performance.
We developed a 300mm manufacturing process for one of the strongest electro-optic materials known to science, barium titanate (BTO).
We developed a 300mm manufacturing process for one of the strongest electro-optic materials known to science, barium titanate (BTO).
March 12, 2025 at 4:25 PM
Photonic quantum computing has long dreamed of optical switches with well-beyond state-of-the-art performance.
We developed a 300mm manufacturing process for one of the strongest electro-optic materials known to science, barium titanate (BTO).
We developed a 300mm manufacturing process for one of the strongest electro-optic materials known to science, barium titanate (BTO).
The latest paper from our Quantum Applications team and partners at Hartree Centre improves resource estimates for codebreaking of binary elliptic curve cryptography (ECC). Shor's algorithm helps our team benchmark resource estimates for commercial applications. www.psiquantum.com/featured-new...
March 10, 2025 at 4:59 PM
The latest paper from our Quantum Applications team and partners at Hartree Centre improves resource estimates for codebreaking of binary elliptic curve cryptography (ECC). Shor's algorithm helps our team benchmark resource estimates for commercial applications. www.psiquantum.com/featured-new...
The performance of the photonic components in our Omega chipset, recently reported in Nature, is already beyond-state-of-the-art. However, the data in the paper is more than a year old. We have since continued to improve waveguide losses and other device characteristics.
March 7, 2025 at 8:20 PM
The performance of the photonic components in our Omega chipset, recently reported in Nature, is already beyond-state-of-the-art. However, the data in the paper is more than a year old. We have since continued to improve waveguide losses and other device characteristics.
A closer look at our Omega chipset. Designed by PsiQuantum and manufactured at GlobalFoundries.
March 5, 2025 at 5:42 PM
A closer look at our Omega chipset. Designed by PsiQuantum and manufactured at GlobalFoundries.
DARPA has advanced PsiQuantum into the final phase of the Utility-Scale Quantum Computing program. We’re proud to continue our partnership with DARPA, whose history of supporting emerging technologies has shaped the world—think GPS, robotics, and self-driving cars. www.psiquantum.com/featured-new...
February 10, 2025 at 5:49 PM
DARPA has advanced PsiQuantum into the final phase of the Utility-Scale Quantum Computing program. We’re proud to continue our partnership with DARPA, whose history of supporting emerging technologies has shaped the world—think GPS, robotics, and self-driving cars. www.psiquantum.com/featured-new...
DARPA has selected PsiQuantum for the final phase of the Utility-Scale Quantum Computing program evaluation. www.psiquantum.com/featured-news/darpa-final-phase
February 6, 2025 at 10:50 PM
DARPA has selected PsiQuantum for the final phase of the Utility-Scale Quantum Computing program evaluation. www.psiquantum.com/featured-news/darpa-final-phase
Exciting results in quantum chemistry published w/
Boehringer Ingelheim brings us closer to calculating the exact electronic structure of Cytochrome P450 and FeMoco on a quantum computer, with >200X reduction in resources relative to state-of-the-art quantum algorithms. arxiv.org/abs/2501.06165
Boehringer Ingelheim brings us closer to calculating the exact electronic structure of Cytochrome P450 and FeMoco on a quantum computer, with >200X reduction in resources relative to state-of-the-art quantum algorithms. arxiv.org/abs/2501.06165
January 14, 2025 at 6:41 PM
Exciting results in quantum chemistry published w/
Boehringer Ingelheim brings us closer to calculating the exact electronic structure of Cytochrome P450 and FeMoco on a quantum computer, with >200X reduction in resources relative to state-of-the-art quantum algorithms. arxiv.org/abs/2501.06165
Boehringer Ingelheim brings us closer to calculating the exact electronic structure of Cytochrome P450 and FeMoco on a quantum computer, with >200X reduction in resources relative to state-of-the-art quantum algorithms. arxiv.org/abs/2501.06165
A 64x64 port high-speed BTO optical switch. The largest switches we plan to build for our first utility-scale systems are 128x128.
January 9, 2025 at 10:39 PM
A 64x64 port high-speed BTO optical switch. The largest switches we plan to build for our first utility-scale systems are 128x128.
We’re thrilled to announce the opening of our Asia-Pacific HQ in Brisbane and unveil renderings of our quantum computing site near Brisbane Airport. This milestone celebrates Queensland’s quantum leadership and our collaboration with local and federal governments to scale this transformative tech.
December 13, 2024 at 9:04 PM
We’re thrilled to announce the opening of our Asia-Pacific HQ in Brisbane and unveil renderings of our quantum computing site near Brisbane Airport. This milestone celebrates Queensland’s quantum leadership and our collaboration with local and federal governments to scale this transformative tech.
Counting up to ~10 photons in a PsiQuantum waveguide-integrated photon-number-resolving superconducting detector. These detectors are mass-manufactured in the United States on 300mm wafers. Amplification here is done using our in-house low-power SiGe ASIC, running at cryogenic temperature.
December 12, 2024 at 4:09 PM
Counting up to ~10 photons in a PsiQuantum waveguide-integrated photon-number-resolving superconducting detector. These detectors are mass-manufactured in the United States on 300mm wafers. Amplification here is done using our in-house low-power SiGe ASIC, running at cryogenic temperature.