5 citations · 9 across the 7 of their papers we have counts for
11 papers
Pushing beyond the memory barrier in propagation algorithms with randomization
Manuel S. Rudolph, Ricard Puig, Slimane Thabet +1
Performant classical tools for simulating quantum circuits are important for benchmarking and supporting upcoming quantum devices. Pauli propagation offers promising capabilities,…
Reaching the Limits of Ground-State Metrology with Many-Body Probes
Erik L. André, Víctor Izquierdo, Ricard Puig +2
We investigate the physical requirements to reach the ultimate limits of ground-state metrology -- i.e., the estimation of an unknown parameter of an -body Hamiltonian via m…
Testing quantum Gaussianity with constant sample complexity
Mahtab Yaghubi Rad, Ricard Puig, Saksham Hassanandani +4
Efficiently testing whether a quantum state possesses a given structure is both a fundamental and a practical task in quantum information. Among the most important structured famil…
Dissipation accelerates quantum and classical simulation of open-system dynamics
Armando Angrisani, Ricard Puig, Yanting Teng +1
Simulating open quantum systems reveals how environmental coupling shapes relaxation, excitation transport, and the dynamics of quantum correlations. On quantum hardware, dissipati…
Exponentially many initializations to avoid barren plateaus
Ankit Kulshrestha, Ricard Puig, Diego García-Martín +4
Barren plateaus are stated as an average-case phenomenon: pick an ansatz, initialize it naively, and concentration follows. This has led to the common view that a potential cure fo…
IQP Born Machines under Data-dependent and Agnostic Initialization Strategies
Sacha Lerch, Joseph Bowles, Ricard Puig +3
Quantum circuit Born machines based on instantaneous quantum polynomial-time (IQP) circuits are natural candidates for quantum generative modeling, both because of their probabilis…
Thermal State Simulation with Pauli and Majorana Propagation
Manuel S. Rudolph, Armando Angrisani, Andrew Wright +3
We introduce a propagation-based approach to thermal state simulation by adapting Pauli and Majorana propagation to imaginary-time evolution in the Schrödinger picture. Our key obs…
Background cancellation for frequency-selective quantum sensing
Ricard Puig, Nathan Constantinides, Bharath Hebbe Madhusudhana +3
A key challenge in quantum sensing is the detection of weak time dependent signals, particularly those that arise as specific frequency perturbations over a background field. Conve…
A unifying account of warm start guarantees for patches of quantum landscapes
Hela Mhiri, Ricard Puig, Sacha Lerch +4
Barren plateaus are fundamentally a statement about quantum loss landscapes on average but there can, and generally will, exist patches of barren plateau landscapes with substantia…
From dynamical to steady-state many-body metrology: Precision limits and their attainability with two-body interactions
Ricard Puig, Pavel Sekatski, Paolo Andrea Erdman +3
We consider the estimation of an unknown parameter via a many-body probe. The probe is initially prepared in a product state and many-body time-independent interactions enhance…
Efficient quantum-enhanced classical simulation for patches of quantum landscapes
Sacha Lerch, Ricard Puig, Manuel S. Rudolph +5
Understanding the capabilities of classical simulation methods is key to identifying where quantum computers are advantageous. Not only does this ensure that quantum computers are…