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Resource-frugal Hamiltonian eigenstate preparation via repeated quantum phase estimation measurements
Richard Meister, Simon C. Benjamin
The preparation of Hamiltonian eigenstates is essential for many applications in quantum computing; the efficiency with which this can be done is of key interest. A canonical appro…
Adaptive surface code for quantum error correction in the presence of temporary or permanent defects
Adam Siegel, Armands Strikis, Thomas Flatters +1
Whether it is at the fabrication stage or during the course of the quantum computation, e.g. because of high-energy events like cosmic rays, the qubits constituting an error correc…
Quantum Error Mitigation
Zhenyu Cai, Ryan Babbush, Simon C. Benjamin +5
For quantum computers to successfully solve real-world problems, it is necessary to tackle the challenge of noise: the errors which occur in elementary physical components due to u…
Exploring ab initio machine synthesis of quantum circuits
Richard Meister, Cica Gustiani, Simon C. Benjamin
Gate-level quantum circuits are often derived manually from higher level algorithms. While this suffices for small implementations and demonstrations, ultimately automatic circuit…
Exploiting subspace constraints and ab initio variational methods for quantum chemistry
Cica Gustiani, Richard Meister, Simon C. Benjamin
Variational methods offer a highly promising route to exploiting quantum computers for chemistry tasks. Here we employ methods described in a sister paper to the present report, en…
Looped Pipelines Enabling Effective 3D Qubit Lattices in a Strictly 2D Device
Zhenyu Cai, Adam Siegel, Simon Benjamin
Many quantum computing platforms are based on a two-dimensional physical layout. Here we explore a concept called looped pipelines which permits one to obtain many of the advantage…
Multicore Quantum Computing
Hamza Jnane, Brennan Undseth, Zhenyu Cai +2
Any architecture for practical quantum computing must be scalable. An attractive approach is to create multiple cores, computing regions of fixed size that are well-spaced but inte…