Open in app
Home
Notifications
Lists
Stories

Write
Brian N. Siegelwax
Brian N. Siegelwax

Home

4 days ago

Classiq’s Satisfiability Problem

This challenge left me satisfied. One of the four challenges of the Classiq Coding Competition was to solve a constraint satisfaction problem using Grover’s Algorithm. Specifically, the challenge was to solve a Kakuro logic puzzle. Kakuro is a logic puzzle, often referred to as a mathematical transliteration of the crossword. The puzzle is played on…

Quantum Computing

3 min read

Classiq’s Satisfiability Problem
Classiq’s Satisfiability Problem

Published in Level Up Coding

·Jun 21

No-Ancilla MCX

Because Qubits Are Still In Short Supply One of the challenges of the 2022 Classiq Coding Competition was to design a 14CX gate, a gate with 14 control qubits and 1 target qubit, with the least circuit depth and the lowest CNOT count. The catch, if you’ll allow me to call it that, was that you could…

Quantum

3 min read

No-Ancilla MCX
No-Ancilla MCX

Published in Level Up Coding

·Jun 20

2 More FREE Qubits

ibm_oslo Grants Users Access to 7 Free Qubits Until it was retired, ibmq_16_melbourne offered then-IBMQ users access to a 14-qubit quantum computer absolutely for free. It was even upgraded to 15 qubits shortly before its retirement. But, then, all of a sudden, free accounts could only access 5-qubit devices and the 1-qubit ibmq_armonk. Three days ago, IBM Quantum reversed course a bit. Users may now access the 7-qubit ibm_oslo for free. What can you do with two more qubits? Quite a bit, quite frankly.

Quantum

1 min read

2 More FREE Qubits
2 More FREE Qubits

Jun 17

Review: ColdQuanta’s Albert

The recent announcement of Dr. Robert S. Sutor’s move from IBM to ColdQuanta has piqued my interest in the latter company. What does an industry VIP see that would have him pack his bags after 39 years? So, let’s start by taking a look at Albert, because it’s available via…

Quantum

3 min read

Review: ColdQuanta’s Albert
Review: ColdQuanta’s Albert

Published in Level Up Coding

·Jun 14

Review: Wolfram Quantum Framework

Based on a Classiq Coding Competition Submission One submission to the recent Classiq Coding Competition was made public early. The solution was generated using the Wolfram Quantum Framework which, at a quick glance, looked like a competitor to Classiq’s Quantum Algorithm Design platform. I thought that was going to be a really interesting predicament for Classiq should…

Quantum

3 min read

Review: Wolfram Quantum Framework
Review: Wolfram Quantum Framework

Published in Level Up Coding

·Jun 12

A ‘Shallow’ SWAP Test

Because Circuit Depth Matters A recently-submitted preprint titled “Error mitigation for quantum kernel based machine learning methods on IonQ and IBM quantum computers” presents a good opportunity to write about my favorite quantum subroutine, the SWAP Test. Also known as a “distance measure,” “kernel method,” and “inner product,” the SWAP Test compares two quantum…

Quantum

3 min read

A ‘Shallow’ SWAP Test
A ‘Shallow’ SWAP Test

Published in Level Up Coding

·May 25

A Native Toffoli Gate

And Why It’s A Big Deal The Advanced Quantum Testbed (AQT) of the United States Department of Energy (DOE) has announced a native Toffoli gate. Okay, so what the heck does that mean? Let’s start from the beginning…. A Toffoli gate, aka CCNOT, aka controlled-controlled-NOT, aka AND gate, doesn’t look like much. Two little dots indicate…

Quantum

4 min read

A Native Toffoli Gate
A Native Toffoli Gate

May 3

Choose Your Own Quantum Adventure

A Personalized Career Guide When I shared my first book, “Dungeons & Qubits: an Adventurer’s Tale Beyond the Quantum Computing Tutorials,” on June 6, 2021, I simply uploaded the PDF to Google Drive and posted the link everywhere I could. I didn’t anticipate any degree of popularity, so I gave zero thought to analytics…

Quantum

5 min read

Choose Your Own Quantum Adventure
Choose Your Own Quantum Adventure

Apr 29

What I Learned From Fire Opal…

…is that I gotta have more Fire Opal…. I recently wrote an article titled, “Q-CTRL’s Fire Opal is Awesome.” The TL;DR of it is that I gave the Fire Opal team deep circuits that produce sheer noise on NISQ devices and they returned to me practical results from NISQ devices. How’d they do it? They reveal a few…

Quantum

2 min read

What I Learned From Fire Opal…
What I Learned From Fire Opal…

Apr 29

QC Startup Turing: the Full Picture

One interview. Three unique articles. I recently interviewed Prof. Seth Lloyd and Dr. Michele Reilly about their quantum computing startup, Turing. The responses would have made for one really long article, so I divided the content into three articles and submitted them to three different publications. Each article, intentionally, has unique content and a unique…

Quantum

2 min read

QC Startup Turing: the Full Picture
QC Startup Turing: the Full Picture
Brian N. Siegelwax

Brian N. Siegelwax

Independent Quantum Algorithm Designer https://www.linkedin.com/in/brian-siegelwax https://twitter.com/BSiegelwax?s=09 https://github.com/bsiegelwax

Following
  • Yuval Boger

    Yuval Boger

  • Qiskit

    Qiskit

  • Rigetti Computing

    Rigetti Computing

  • Jack Krupansky

    Jack Krupansky

  • Trey Huffine

    Trey Huffine

Help

Status

Writers

Blog

Careers

Privacy

Terms

About

Knowable