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The perturbative method for quantum correlations
Sacha Cerf, Harold Ollivier
The set of quantum correlations is the collection of all possible probability distributions on measurement outcomes achievable by space-like separated parties sharing…
Asymmetric Quantum Secure Multi-Party Computation With Weak Clients Against Dishonest Majority
Theodoros Kapourniotis, Elham Kashefi, Dominik Leichtle +2
Secure multi-party computation (SMPC) protocols allow several parties that distrust each other to collectively compute a function on their inputs. In this paper, we introduce a pro…
Unifying Quantum Verification and Error-Detection: Theory and Tools for Optimisations
Theodoros Kapourniotis, Elham Kashefi, Dominik Leichtle +2
With the advent of cloud-based quantum computing, it has become vital to provide strong guarantees that computations delegated by clients to quantum service providers have been exe…
Emergence of Objectivity for Quantum Many-Body Systems
Harold Ollivier
We examine the emergence of objectivity for quantum many-body systems in a setting without an environment to decohere the system's state, but where observers can only access small…
Verifying BQP Computations on Noisy Devices with Minimal Overhead
Dominik Leichtle, Luka Music, Elham Kashefi +1
With the development of delegated quantum computation, clients will want to ensure confidentiality of their data and algorithms, and the integrity of their computations. While prot…
Delegating Multi-Party Quantum Computations vs. Dishonest Majority in Two Quantum Rounds
Theodoros Kapourniotis, Elham Kashefi, Luka Music +1
Multi-Party Quantum Computation (MPQC) has attracted a lot of attention as a potential killer-app for quantum networks through it's ability to preserve privacy and integrity of the…