Skip to content
Microsoft Quantum

Achieving scalability in quantum computing 

While a variety of quantum systems exist today, many are unable to scale to solve some of the world’s most challenging problems. Explaining the real-world obstacles of building a quantum system that scales, this post explores how Microsoft addresses these challenges through a topological qubit....

Read more

Announcing the Microsoft Quantum Development Kit 

Just a few months back, Microsoft CEO Satya Nadella shared our vision of empowering the quantum revolution with bold investments towards a scalable end-to-end solution, revolutionary topological approach, and a global team. Today, we take the next step in this journey with the Microsoft Quantum Development Kit to help you get started with quantum development. The Microsoft Quantum Development Kit, preview available here, includes the following three key components: Fully integrated quantum-focused programming language Q# (Q-sharp): Designed ground up for quantum, Q# is the most approachable high-level programming language with a native type system for qubits, operators, and other abstractions....

Read more

Microsoft announces quantum computing programming language 

For more than a decade, a team of researchers, engineers and developers at Microsoft has been working on quantum computing, a new model of computing that promises exponential increases in processing power and could help scientists tackle questions previously considered unanswerable—on topics ranging from climate science and medical research, to the human genome and economics....

Read more

Epitaxy of advanced nanowire quantum devices 

Semiconductor nanowires are ideal for realizing various low-dimensional quantum devices. In particular, topological phases of matter hosting non-Abelian quasiparticles (such as anyons) can emerge when a semiconductor nanowire with strong spin-orbit coupling is brought into contact with a superconductor. To exploit the potential of non-Abelian anyons—which are key elements of topological quantum computing—fully, they need...

Read more

Elucidating reaction mechanisms on quantum computers 

    We show how a quantum computer can be employed to elucidate reaction mechanisms in complex chemical systems, using the open problem of biological nitrogen fixation in nitrogenase as an example. We discuss how quantum computers can augment classical-computer simulations for such problems, to significantly increase their accuracy and enable hitherto intractable simulations. Detailed...

Read more

APS Physical Review Letters selects Station Q paper 

  We are pleased to announce that the American Physical Society (APS) journal, Physical Review Letters, has selected the Station Q paper, Transport Signatures of Quasiparticle Poisoning in a Majorana Island, as an Editors’ Suggestion. The paper details how, working with theorists in Copenhagen, we found a way to measure the quasiparticle poisoning rate of a Majorana...

Read more

Magic state distillation with low space overhead and optimal asymptotic input count 

  In our quest for topological quantum computing with Majorana zero modes, one missing piece is the efficient, high-quality creation of magic states to perform the π/8 (or “T” gate). Our new paper, Magic State Distillation with Low Space Overhead and Optimal Asymptotic Input Count, provides a family of solutions to this need, allowing for a wide range...

Read more

Design automation and design space exploration for quantum computers 

  A major hurdle for quantum algorithms for linear systems of equations, and for quantum simulation algorithms, is the difficulty to find simple circuits for arithmetic. Prior approaches typically led to a large overhead in terms of quantum memory, required operations, or implementation error. By leveraging recent advances in reversible logic synthesis, Martin Roetteler and...

Read more

Common framework for scientific experiments: QCoDeS 

  QCoDeS is an open source data acquisition framework that was created by distilling the homegrown solutions used in Station Q’s experimental labs, and infused with all the best practices from the open source software world. It includes a simple syntax to define complex sweeps over n-dimensional parameter space, all the machinery required to visualize...

Read more

Transport signatures of quasiparticle poisoning in a Majorana island 

As its name implies, the poisoning of Majorana devices by normal electrons is fatal to topological computation, so much effort is now focused on characterizing the degree of poisoning either by the creation of quasiparticle pairs within the device, or by electrons entering the device through the leads. A recent experiment (see https://arxiv.org/abs/1612.05748), led by Sven...

Read more

Anomalous Fraunhofer Interference in Epitaxial Superconductor-Semiconductor Josephson Junctions 

  Last year saw a materials breakthrough, with the realization of a two-dimensional heterostructure combining superconductor and semiconductor layers. (See journals.aps.org/prb/abstract/10.1103/PhysRevB.93.15540.) Now, as shown in a recent report, this material has been used to study interference effects controlled by magnetic fields in a Josephson junction made from this material. Anomalous interference reveals properties of the semiconductor in...

Read more