Ibrahim Shehzad
@ibrahims16.bsky.social
Physicist turned quantum algorithm developer
Reposted by Ibrahim Shehzad
The QEC25 conference hosted by @yaleqi.bsky.social was really excellent, and videos of all talks are available. So much recent progress on quantum error correction!
qec25.yalepages.org
qec25.yalepages.org
QEC25
qec25.yalepages.org
August 17, 2025 at 5:32 PM
The QEC25 conference hosted by @yaleqi.bsky.social was really excellent, and videos of all talks are available. So much recent progress on quantum error correction!
qec25.yalepages.org
qec25.yalepages.org
Reposted by Ibrahim Shehzad
The infectious enthusiasm of my wonderful co-authors (Robert Huang, Soonwon Choi, Jarrod McClean) drove this upbeat assessment of “The Vast World of Quantum Advantage.”
arxiv.org/abs/2508.05720
arxiv.org/abs/2508.05720
The vast world of quantum advantage
The quest to identify quantum advantages lies at the heart of quantum technology. While quantum devices promise extraordinary capabilities, from exponential computational speedups to unprecedented mea...
arxiv.org
August 11, 2025 at 1:56 AM
The infectious enthusiasm of my wonderful co-authors (Robert Huang, Soonwon Choi, Jarrod McClean) drove this upbeat assessment of “The Vast World of Quantum Advantage.”
arxiv.org/abs/2508.05720
arxiv.org/abs/2508.05720
Reposted by Ibrahim Shehzad
After 3 1/2 years of work my course on quantum computing is finally finished — the "Director's Cut" of Understanding Quantum Information and Computation is now available.
arxiv.org/abs/2507.11536
arxiv.org/abs/2507.11536
Understanding Quantum Information and Computation
This is a course on the theory of quantum computing. It consists of 16 lessons, each with a video and written component, covering the basics of quantum information, quantum algorithms (including query...
arxiv.org
July 16, 2025 at 11:06 AM
After 3 1/2 years of work my course on quantum computing is finally finished — the "Director's Cut" of Understanding Quantum Information and Computation is now available.
arxiv.org/abs/2507.11536
arxiv.org/abs/2507.11536
Reposted by Ibrahim Shehzad
"For quantum computers to get significant speed-up, they need to take advantage of special structure. They do not offer significant speed-up for unstructured problems, so we do not expect to be able to just throw them at anything." Andrew Childs arxiv.org/pdf/2408.16175
arxiv.org
July 11, 2025 at 2:23 PM
"For quantum computers to get significant speed-up, they need to take advantage of special structure. They do not offer significant speed-up for unstructured problems, so we do not expect to be able to just throw them at anything." Andrew Childs arxiv.org/pdf/2408.16175
Reposted by Ibrahim Shehzad
"Creating knowledge is only half the story — sharing it is the other half."
Hence, I share some of my public research presentations, lectures, tutorials, and technical notes on github here: github.com/zlatko-minev...
#quantum #qubit #opensource
Hence, I share some of my public research presentations, lectures, tutorials, and technical notes on github here: github.com/zlatko-minev...
#quantum #qubit #opensource
May 26, 2025 at 3:09 AM
"Creating knowledge is only half the story — sharing it is the other half."
Hence, I share some of my public research presentations, lectures, tutorials, and technical notes on github here: github.com/zlatko-minev...
#quantum #qubit #opensource
Hence, I share some of my public research presentations, lectures, tutorials, and technical notes on github here: github.com/zlatko-minev...
#quantum #qubit #opensource
Reposted by Ibrahim Shehzad
In quantum information theory you sometimes need to have an explicit form of the complementary channel of a quantum channel.
Given a Kraus representation of the original channel, it's straightforward to write down a Kraus representation of the complementary channel via slicing arrays!
Given a Kraus representation of the original channel, it's straightforward to write down a Kraus representation of the complementary channel via slicing arrays!
March 18, 2025 at 7:00 PM
In quantum information theory you sometimes need to have an explicit form of the complementary channel of a quantum channel.
Given a Kraus representation of the original channel, it's straightforward to write down a Kraus representation of the complementary channel via slicing arrays!
Given a Kraus representation of the original channel, it's straightforward to write down a Kraus representation of the complementary channel via slicing arrays!
Reposted by Ibrahim Shehzad
Bullshit: Quantum Speedup Found for Huge Class of Hard Problems
www.quantamagazine.org/quantum-spee...
www.quantamagazine.org/quantum-spee...
Quantum Speedup Found for Huge Class of Hard Problems | Quanta Magazine
It’s been difficult to find important questions that quantum computers can answer faster than classical machines, but a new algorithm appears to do it for some critical optimization tasks.
www.quantamagazine.org
March 18, 2025 at 1:32 PM
Bullshit: Quantum Speedup Found for Huge Class of Hard Problems
www.quantamagazine.org/quantum-spee...
www.quantamagazine.org/quantum-spee...
Reposted by Ibrahim Shehzad
Here is a 'simple' 3-line proof for this statement!
(Although the simplicity hides behind the form and properties of the matrix geometric mean.)
(Although the simplicity hides behind the form and properties of the matrix geometric mean.)
March 14, 2025 at 5:24 PM
Here is a 'simple' 3-line proof for this statement!
(Although the simplicity hides behind the form and properties of the matrix geometric mean.)
(Although the simplicity hides behind the form and properties of the matrix geometric mean.)
Reposted by Ibrahim Shehzad
Clifford-based proxy circuits reliably approximate generic circuit fidelities under error models admitting Pauli twirling, addressing concerns about overlooked errors.
arxiv.org/abs/2503.05943
arxiv.org/abs/2503.05943
When Clifford benchmarks are sufficient; estimating application performance with scalable proxy circuits
The goal of benchmarking is to determine how far the output of a noisy system is from its ideal behavior; this becomes exceedingly difficult for large quantum systems where classical simulations becom...
arxiv.org
March 11, 2025 at 1:35 PM
Clifford-based proxy circuits reliably approximate generic circuit fidelities under error models admitting Pauli twirling, addressing concerns about overlooked errors.
arxiv.org/abs/2503.05943
arxiv.org/abs/2503.05943
Reposted by Ibrahim Shehzad
A new paper presents the first quantum hardware computation of electron spin resonance hyperfine coupling constants using a qubit-ADAPT approach with unrestricted orbital optimization.
arxiv.org/abs/2503.09214
arxiv.org/abs/2503.09214
Hyperfine Coupling Constants on Quantum Computers: Performance, Errors, and Future Prospects
We present the first implementation and computation of electron spin resonance isotropic hyperfine coupling constants (HFCs) on quantum hardware. As illustrative test cases, we compute the HFCs for th...
arxiv.org
March 13, 2025 at 12:22 PM
A new paper presents the first quantum hardware computation of electron spin resonance hyperfine coupling constants using a qubit-ADAPT approach with unrestricted orbital optimization.
arxiv.org/abs/2503.09214
arxiv.org/abs/2503.09214
Reposted by Ibrahim Shehzad
A new paper introduces a quantum solver for partial differential equations using a matrix product operator representation, enabling non-unitary evolution via mid-circuit measurements and norm corrections, demonstrated on Euler equations with absorbing boundaries.
arxiv.org/abs/2502.04425
arxiv.org/abs/2502.04425
Tensor-Programmable Quantum Circuits for Solving Differential Equations
We present a quantum solver for partial differential equations based on a flexible matrix product operator representation. Utilizing mid-circuit measurements and a state-dependent norm correction, thi...
arxiv.org
February 10, 2025 at 1:37 PM
A new paper introduces a quantum solver for partial differential equations using a matrix product operator representation, enabling non-unitary evolution via mid-circuit measurements and norm corrections, demonstrated on Euler equations with absorbing boundaries.
arxiv.org/abs/2502.04425
arxiv.org/abs/2502.04425
Reposted by Ibrahim Shehzad
Why should quantum have all the science pun fun? 🧪
January 21, 2025 at 6:51 PM
Why should quantum have all the science pun fun? 🧪
Reposted by Ibrahim Shehzad
Quantum batteries leverage exotic #quantum phenomena to store and release energy in ways that conventional batteries cannot. Now it turns out that the bane of most quantum devices – decoherence – can actually boost a quantum battery's charging speed. ⚛️ 🧪 physicsworld.com/a/when-charg...
When charging quantum batteries, decoherence is a friend, not a foe – Physics World
Controlled dephasing can be harnessed to enhance the batteries’ efficiency and stability
physicsworld.com
January 21, 2025 at 12:21 PM
Quantum batteries leverage exotic #quantum phenomena to store and release energy in ways that conventional batteries cannot. Now it turns out that the bane of most quantum devices – decoherence – can actually boost a quantum battery's charging speed. ⚛️ 🧪 physicsworld.com/a/when-charg...
Reposted by Ibrahim Shehzad
📷 This NASA/ESA/CSA James #Webb Space Telescope image shows NGC 346, one of the most dynamic star-forming regions in nearby galaxies, and the study of which recently solved a puzzle by proving a controversial finding made using NASA/ESA #Hubble over 20 years ago!
www.esa.int/Science_Expl... 🔭🧪
www.esa.int/Science_Expl... 🔭🧪
January 12, 2025 at 1:02 PM
📷 This NASA/ESA/CSA James #Webb Space Telescope image shows NGC 346, one of the most dynamic star-forming regions in nearby galaxies, and the study of which recently solved a puzzle by proving a controversial finding made using NASA/ESA #Hubble over 20 years ago!
www.esa.int/Science_Expl... 🔭🧪
www.esa.int/Science_Expl... 🔭🧪
Reposted by Ibrahim Shehzad
Very interesting perspective which examine different "myths" around quantum computation before full fault tolerance .
Huge recommendation!
arxiv.org/abs/2501.05694
Huge recommendation!
arxiv.org/abs/2501.05694
Myths around quantum computation before full fault tolerance: What no-go theorems rule out and what they don't
In this perspective article, we revisit and critically evaluate prevailing viewpoints on the capabilities and limitations of near-term quantum computing and its potential transition toward fully fault...
arxiv.org
January 13, 2025 at 2:47 PM
Very interesting perspective which examine different "myths" around quantum computation before full fault tolerance .
Huge recommendation!
arxiv.org/abs/2501.05694
Huge recommendation!
arxiv.org/abs/2501.05694
Reposted by Ibrahim Shehzad
I can’t be the only one seeing a superconducting quantum computer, right?
January 6, 2025 at 8:57 PM
I can’t be the only one seeing a superconducting quantum computer, right?
Reposted by Ibrahim Shehzad
Most beautiful literature-organization diagram I have seen.
Should we begin to use such trees for technology-paper organization when publishing literature reviews?
This is from "Scaling of Search and Learning: A Roadmap to Reproduce o1
from Reinforcement Learning Perspective"
#ai #ml #quantum
Should we begin to use such trees for technology-paper organization when publishing literature reviews?
This is from "Scaling of Search and Learning: A Roadmap to Reproduce o1
from Reinforcement Learning Perspective"
#ai #ml #quantum
January 3, 2025 at 6:53 PM
Reposted by Ibrahim Shehzad
Of course, these are only simple toy models, and miss most features of proper (quantum) gravity. But the upshot is that going from semiclassical to quantum gravity states is essentially a qubit compression task!
January 3, 2025 at 11:26 AM
Of course, these are only simple toy models, and miss most features of proper (quantum) gravity. But the upshot is that going from semiclassical to quantum gravity states is essentially a qubit compression task!
Reposted by Ibrahim Shehzad
will there ever be a quantum version of this?
Intel launched the Pentium processor in 1993. Unfortunately, dividing sometimes gave a slightly wrong answer, the famous FDIV bug. Replacing the faulty chips cost Intel $475 million. I reverse-engineered the circuitry and can explain the bug. 1/9
December 14, 2024 at 10:46 AM
will there ever be a quantum version of this?
Reposted by Ibrahim Shehzad
My take on different interpretations of quantum mechanics is that I will devote serious thought to them as soon as they make one (1) testable prediction
December 16, 2024 at 12:23 AM
My take on different interpretations of quantum mechanics is that I will devote serious thought to them as soon as they make one (1) testable prediction
Reposted by Ibrahim Shehzad
A behind the scenes look at how we test our quantum processors with Jerry M. Chow and Daniela Bogorin , with lots of special lab sights
youtu.be/sUCK4RaJlv0
youtu.be/sUCK4RaJlv0
Lab Tour: How IBM tests quantum processors
YouTube video by IBM Research
youtu.be
December 14, 2024 at 4:48 AM
A behind the scenes look at how we test our quantum processors with Jerry M. Chow and Daniela Bogorin , with lots of special lab sights
youtu.be/sUCK4RaJlv0
youtu.be/sUCK4RaJlv0
Reposted by Ibrahim Shehzad
Interested in learning more about QEC? Check out our course on Coursera led by Austin Fowler
#quantum
www.coursera.org/learn/quantu...
#quantum
www.coursera.org/learn/quantu...
Hands-on quantum error correction with Google Quantum AI
Offered by Google Quantum AI. This course is aimed at first year undergraduates to experienced researchers looking for an overview of ... Enroll for free.
www.coursera.org
December 11, 2024 at 3:50 PM
Interested in learning more about QEC? Check out our course on Coursera led by Austin Fowler
#quantum
www.coursera.org/learn/quantu...
#quantum
www.coursera.org/learn/quantu...
Reposted by Ibrahim Shehzad
Getting started in design of superconducting #quantum circuits?
What are your favorite references? Here's a few to start:
A quantum engineer's guide to superconducting qubits
https://buff.ly/4irOZ6Y
Circuit Quantum Electrodynamics
https://buff.ly/4irqnv2
1/2
What are your favorite references? Here's a few to start:
A quantum engineer's guide to superconducting qubits
https://buff.ly/4irOZ6Y
Circuit Quantum Electrodynamics
https://buff.ly/4irqnv2
1/2
A quantum engineer's guide to superconducting qubits
The aim of this review is to provide quantum engineers with an introductory guide to the central concepts and challenges in the rapidly accelerating field of su
pubs.aip.org
December 7, 2024 at 4:15 AM
Getting started in design of superconducting #quantum circuits?
What are your favorite references? Here's a few to start:
A quantum engineer's guide to superconducting qubits
https://buff.ly/4irOZ6Y
Circuit Quantum Electrodynamics
https://buff.ly/4irqnv2
1/2
What are your favorite references? Here's a few to start:
A quantum engineer's guide to superconducting qubits
https://buff.ly/4irOZ6Y
Circuit Quantum Electrodynamics
https://buff.ly/4irqnv2
1/2