23 citations · 34 across the 12 of their papers we have counts for
12 papers · 1 filter
Noise-resilient sequential circuits for generating quantum order
Konstantin Gattinger, Julian Boesl, Max McGinley +2
Sequential circuits provide an optimal linear-depth route to unitarily preparing long-range ordered quantum states, but circuit-level noise can be far more damaging than noise appl…
Conditional dependence and Scrooge ensembles in shallow random quantum circuits
Yinchen Liu, Max McGinley, Thomas Schuster +1
The output state of a 2D geometrically local shallow random quantum circuit does not have long range correlations due to its lightcone structure. But this changes if one measures a…
Mixed-state topological order and error-correction thresholds in non-Abelian codes: rigorous results
Sun Woo P. Kim, Max McGinley
We present a versatile and mathematically rigorous technique for bounding recovery thresholds in topological codes subject to noise. Our method captures the effect of applying an a…
Projected logical ensembles in surface codes via the random-matrix theory of quantum dots
Mircea Bejan, Jan Behrends, Max McGinley +1
Measurements underpin active quantum error correction (QEC) and have been recognized as a source of novel measurement-induced many-body phenomena. Here, we study the statistical pr…
The Scrooge ensemble in many-body quantum systems
Max McGinley, Thomas Schuster
In many physical settings, the statistical properties of quantum states are thought to be described by the Scrooge ensemble, a more structured generalization of the Haar ensemble.…
Gaussian tomography for cold-atom simulators
Matthew Kiser, Max McGinley, Daniel Malz
A limitation of analog quantum simulators based on cold atoms in optical lattices is that readout is typically limited to observables diagonal in the charge basis, i.e., densities…
Lower bounds on the complexity of preparing mixed states
Max McGinley, Samuel J. Garratt
We establish a relationship between the correlations in a many-qubit mixed state and the minimum circuit depth needed for its preparation. If the mutual information between two sub…
Quantum State Designs via Magic Teleportation
Hugo Lóio, Guglielmo Lami, Lorenzo Leone +3
We investigate how non-stabilizer resources enable the emergence of quantum state designs within the projected ensemble. Starting from initial states with finite magic and applying…
Entanglement and private information in many-body thermal states
Samuel J. Garratt, Max McGinley
We use concepts from quantum cryptography to relate the entanglement in many-body mixed states to standard correlation functions. If a system can be used as a resource for distilli…
Matchgate circuits deeply thermalize
Mircea Bejan, Benjamin Béri, Max McGinley
We study the ensemble of states generated by performing projective measurements on the output of a random matchgate (or free-fermionic) quantum circuit. We rigorously show that thi…
Measurement-induced entanglement and complexity in random constant-depth 2D quantum circuits
Max McGinley, Wen Wei Ho, Daniel Malz
We analyse the entanglement structure of states generated by random constant-depth two-dimensional quantum circuits, followed by projective measurements of a subset of sites. By de…
Postselection-free learning of measurement-induced quantum dynamics
Max McGinley
We address how one can empirically infer properties of quantum states generated by dynamics involving measurements. Our focus is on many-body settings where the number of measureme…