Department of Computer Science

Quantum Software and Algorithms

Fostering large-scale quantum computing
Artistic illustration for quantum software research, orange and black shapes, illustration by Matti Ahlgren

Quantum computing deploys the phenomena of quantum mechanics to solve complex problems that even the most powerful supercomputers cannot execute. This interdisciplinary research area is focused to achieve large-scale quantum computing from the software perspective. The main goal is to support the execution of quantum algorithms with a practical advantage. This implies that at least the following research topics will be pursued:

  • (quantum) machine learning
  • compilation and optimization of circuits
  • efficient error-correction and fault-tolerance
  • simulation of quantum circuits
KQCircuits Chip Design. Picture: IQM.

IQM announces KQCircuits - An open-source software to design superconducting quantum processors

IQM Quantum Computers (IQM) announced today its open-source
software tool KQCircuits to automate the design of superconducting quantum processors. KQCircuits is a Python library jointly developed by Aalto University and IQM using the KLayout design program.

Professor Paler infront of the Comptuer Science department

Alexandru Paler: Creating software for quantum computers

The newest professor to join the department of computer science tells us about how, when you cut through all the hype, quantum computing is full of interesting challenges that unites diverse fields


Latest publications

Queuing Theory Models for (Fault-Tolerant) Quantum Circuits: Analysis and Optimization

Robert Basmadjian, Alexandru Paler 2024 Quantum Computing

Compilation of algorithm-specific graph states for quantum circuits

Madhav Krishnan Vijayan, Alexandru Paler, Jason Gavriel, Casey R. Myers, Peter P. Rohde, Simon J. Devitt 2024 Quantum Science and Technology

Transversal injection for direct encoding of ancilla states for non-Clifford gates using stabilizer codes

Jason Gavriel, Daniel Herr, Alexis Shaw, Michael J. Bremner, Alexandru Paler, Simon J. Devitt 2023 PHYSICAL REVIEW RESEARCH

Transversal Injection: Using the Surface Code to Prepare Non-Pauli Eigenstates

Jason Gavriel, Daniel Herr, Alexis Shaw, Michael J. Bremner, Alexandru Paler, Simon J. Devitt 2023 2023 IEEE International Conference on Quantum Computing and Engineering (QCE)

Machine Learning Optimization of Quantum Circuit Layouts

Alexandru Paler, Lucian Sasu, Adrian-Catalin Florea, Razvan Andonie 2023 ACM Transactions on Quantum Computing

Pipelined correlated minimum weight perfect matching of the surface code

Alexandru Paler, Austin G. Fowler 2023 Quantum

Logical and Physical Reversibility of Conservative Skyrmion Logic

Xuan Hu, Benjamin W. Walker, Felipe Garcia-Sanchez, Alexander Edwards, Peng Zhou, Jean Anne C. Incorvia, Alexandru Paler, Michael P. Frank, Joseph S. Friedman 2022 IEEE Magnetics Letters

Halving the width of Toffoli-based constant modular addition to n+3 qubits

Oumarou Oumarou, Alexandru Paler, Robert Basmadjian 2022 Physical Review A

On the realistic worst case analysis of quantum arithmetic circuits

Alexandru Paler, Oumarou Oumarou, Robert Basmadjian 2022 IEEE Transactions on Quantum Engineering

Quantum Fourier addition simplified to Toffoli addition

Alexandru Paler 2022 Physical Review A
More information on our research in the Aalto research portal.
Research portal

Related units

Helsinki Institute for Information Technology HIIT (external link)

Collaborative institute for research on information technology.

HIIT logo

InstituteQ – The Finnish Quantum Institute

InstituteQ coordinates quantum technology research, education and innovation across Finland

InstituteQ. Photo: Jorden Senior.
PML research gropu at department of computer science, photo Matti Ahlgren

Research in Computer Science

Research in the Department of Computer Science

Department of Computer Science
Artistic depiction of a bright light in space / made by Ray Scipak

School of Science

Science for tomorrow’s technology, innovations and businesses

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