collaborators

6 papers

quant-ph2026

Fully quantum inflation: quantum marginal problem constraints in the service of causal inference

Isaac D. Smith, Elie Wolfe, Robert W. Spekkens

Consider the problem of deciding, for a particular multipartite quantum state, whether or not it is realizable in a quantum network with a particular causal structure. This is a fu…

quant-ph2025

Efficient Preparation of Resource States for Hamiltonian Simulation and Universal Quantum Computation

Thierry N. Kaldenbach, Isaac D. Smith, Hendrik Poulsen Nautrup +2

The direct compilation of algorithm-specific graph states in measurement-based quantum computation (MBQC) can lead to resource reductions in terms of circuit depth, entangling gate…

quant-ph2025

Minimally Universal Parity Quantum Computing

Isaac D. Smith, Berend Klaver, Hendrik Poulsen Nautrup +2

In parity quantum computing, multi-qubit logical gates are implemented by single-qubit rotations on a suitably encoded state involving auxiliary qubits. Consequently, there is a co…

quant-ph2025

Optimally generating using Pauli strings

Isaac D. Smith, Maxime Cautrès, David T. Stephen +1

Any quantum computation consists of a sequence of unitary evolutions described by a finite set of Hamiltonians. When this set is taken to consist of only products of Pauli operator…

cs.LG2025

The Work Capacity of Channels with Memory: Maximum Extractable Work in Percept-Action Loops

Lukas J. Fiderer, Paul C. Barth, Isaac D. Smith +1

Predicting future observations plays a central role in machine learning, biology, economics, and many other fields. It lies at the heart of organizational principles such as the va…

quant-ph2025

Parity Quantum Computing as YZ-Plane Measurement-Based Quantum Computing

Isaac D. Smith, Hendrik Poulsen Nautrup, Hans J. Briegel

We show that universal parity quantum computing employing a recently introduced constant depth decoding procedure is equivalent to measurement-based quantum computation (MBQC) on a…