55 citations · 243 across the 21 of their papers we have counts for
21 papers
Observable Estimation in the Absence of Classical Verification
Samantha V. Barron, Bradley Mitchell, Vinay Tripathi +45
The predictive success of quantum mechanics underpins many areas of modern science, even as the exact simulation of large, interacting quantum systems remains beyond the reach of c…
Simulation of Fermionic circuits using Majorana Propagation
Aaron Miller, Joachim Favre, Zoë Holmes +6
We introduce Majorana Propagation, an algorithmic framework for the classical simulation of Fermionic circuits. Inspired by Pauli Propagation, Majorana Propagation operates by appl…
Myths around quantum computation before full fault tolerance: What no-go theorems rule out and what they don't
Zoltán Zimborás, Bálint Koczor, Zoë Holmes +19
In this perspective article, we revisit and critically evaluate prevailing viewpoints on the capabilities and limitations of near-term quantum computing and its potential transitio…
Dynamical simulations of many-body quantum chaos on a quantum computer
Laurin E. Fischer, Matea Leahy, Andrew Eddins +16
Quantum circuits with local unitaries have emerged as a rich playground for the exploration of many-body quantum dynamics of discrete-time systems. While the intrinsic locality mak…
Practical techniques for high-precision measurements on near-term quantum hardware and applications in molecular energy estimation
Keijo Korhonen, Hetta Vappula, Adam Glos +6
Achieving high-precision measurements on near-term quantum devices is critical for advancing quantum computing applications. Quantum computers suffer from high readout errors, maki…
Scalability of quantum error mitigation techniques: from utility to advantage
Sergey N. Filippov, Sabrina Maniscalco, Guillermo García-Pérez
Error mitigation has elevated quantum computing to the scale of hundreds of qubits and tens of layers; however, yet larger scales (deeper circuits) are needed to fully exploit the…
Transfer and routing of Gaussian states through quantum complex networks with and without community structure
Markku Hahto, Johannes Nokkala, Guillermo García-Pérez +2
The goal in quantum state transfer is to avoid the need to physically transport carriers of quantum information. This is achieved by using a suitably engineered Hamiltonian that in…
Scalable tensor-network error mitigation for near-term quantum computing
Sergei Filippov, Matea Leahy, Matteo A. C. Rossi +1
Until fault-tolerance becomes implementable at scale, quantum computing will heavily rely on noise mitigation techniques. While methods such as zero noise extrapolation with probab…
Matrix product channel: Variationally optimized quantum tensor network to mitigate noise and reduce errors for the variational quantum eigensolver
Sergey Filippov, Boris Sokolov, Matteo A. C. Rossi +5
Quantum processing units boost entanglement at the level of hardware and enable physical simulations of highly correlated electron states in molecules and intermolecular chemical b…
Self-consistent quantum measurement tomography based on semidefinite programming
Marco Cattaneo, Matteo A. C. Rossi, Keijo Korhonen +4
We propose an estimation method for quantum measurement tomography (QMT) based on semidefinite programming (SDP), and discuss how it may be employed to detect experimental imperfec…
The Bonsai algorithm: grow your own fermion-to-qubit mapping
Aaron Miller, Zoltán Zimborás, Stefan Knecht +2
Fermion-to-qubit mappings are used to represent fermionic modes on quantum computers, an essential first step in many quantum algorithms for electronic structure calculations. In t…
Mitigating the measurement overhead of ADAPT-VQE with optimised informationally complete generalised measurements
Anton Nykänen, Matteo A. C. Rossi, Elsi-Mari Borrelli +2
ADAPT-VQE stands out as a robust algorithm for constructing compact ansätze for molecular simulation. It enables to significantly reduce the circuit depth with respect to other met…
Repeated measurements on non-replicable systems and their consequences for Unruh-DeWitt detectors
Nicola Pranzini, Guillermo García-Pérez, Esko Keski-Vakkuri +1
The Born rule describes the probability of obtaining an outcome when measuring an observable of a quantum system. As it can only be tested by measuring many copies of the system un…
Adaptive POVM implementations and measurement error mitigation strategies for near-term quantum devices
Adam Glos, Anton Nykänen, Elsi-Mari Borrelli +4
We present adaptive measurement techniques tailored for variational quantum algorithms on near-term small and noisy devices. In particular, we generalise earlier "learning to measu…
Virtual linear map algorithm for classical boost in near-term quantum computing
Guillermo García-Pérez, Elsi-Mari Borrelli, Matea Leahy +5
The rapid progress in quantum computing witnessed in recent years has sparked widespread interest in developing scalable quantum information theoretic methods to work with large qu…
Quantum network medicine: rethinking medicine with network science and quantum algorithms
Sabrina Maniscalco, Elsi-Mari Borrelli, Daniel Cavalcanti +14
Scientific and technological advances in medicine and systems biology have unequivocally shown that health and disease must be viewed in the context of the interplay among multiple…
Spatial search by continuous-time quantum walks on renormalized Internet networks
Joonas Malmi, Matteo A. C. Rossi, Guillermo García-Pérez +1
We study spatial search with continuous-time quantum walks on real-world complex networks. We use smaller replicas of the Internet network obtained with a recent geometric renormal…
Quantum simulation of dissipative collective effects on noisy quantum computers
Marco Cattaneo, Matteo A. C. Rossi, Guillermo García-Pérez +2
Dissipative collective effects are ubiquitous in quantum physics, and their relevance ranges from the study of entanglement in biological systems to noise mitigation in quantum com…
Experimentally accessible non-separability criteria for multipartite entanglement structure detection
Guillermo García-Pérez, Oskari Kerppo, Matteo A. C. Rossi +1
The description of the complex separability structure of quantum states in terms of partially ordered sets has been recently put forward. In this work, we address the question of h…
Pairwise tomography networks for many-body quantum systems
Guillermo García-Pérez, Matteo A. C. Rossi, Boris Sokolov +2
We introduce the concept of pairwise tomography networks to characterise quantum properties in many-body systems and demonstrate an efficient protocol to measure them experimentall…
Decoherence without entanglement and Quantum Darwinism
Guillermo García-Pérez, Diana A. Chisholm, Matteo A. C. Rossi +2
It is commonly believed that decoherence arises as a result of the entangling interaction between a quantum system and its environment, as a consequence of which the environment ef…