1. Faculty of Computing, University of Latvia, Riga LV-1586, Latvia.
2. Cheriton School of Computer Science, University of Waterloo, Waterloo, ON, Canada.
3. School of Computer and Communication Sciences, EPFL, Lausanne, Switzerland.
4. Department of Computer Science, University of Texas at Austin, Austin, TX 78705 USA.
5. Microsoft Quantum, Redmond, WA 98052 USA.