156 citations · 2.3k across the 65 of their papers we have counts for
14 papers · 1 filter
Quantum state preparation via engineered ancilla resetting
Daniel Alcalde Puente, Felix Motzoi, Tommaso Calarco +2
In this theoretical investigation, we study the effectiveness of a protocol that incorporates periodic quantum resetting to prepare ground states of frustration-free parent Hamilto…
Reduced basis surrogates for quantum spin systems based on tensor networks
Paul Brehmer, Michael F. Herbst, Stefan Wessel +2
Within the reduced basis methods approach, an effective low-dimensional subspace of a quantum many-body Hilbert space is constructed in order to investigate, e.g., the ground-state…
Surrogate models for quantum spin systems based on reduced order modeling
Michael F. Herbst, Stefan Wessel, Matteo Rizzi +1
We present a methodology to investigate phase-diagrams of quantum models based on the principle of the reduced basis method (RBM). The RBM is built from a few ground-state snapshot…
A tensor network annealing algorithm for two-dimensional thermal states
A. Kshetrimayum, M. Rizzi, J. Eisert +1
Tensor network methods have become a powerful class of tools to capture strongly correlated matter, but methods to capture the experimentally ubiquitous family of models at finite…
The Tensor Networks Anthology: Simulation techniques for many-body quantum lattice systems
Pietro Silvi, Ferdinand Tschirsich, Matthias Gerster +4
We present a compendium of numerical simulation techniques, based on tensor network methods, aiming to address problems of many-body quantum mechanics on a classical computer. The…
Continuous matrix product states with periodic boundary conditions and an application to atomtronics
Damian Draxler, Jutho Haegeman, Frank Verstraete +1
We introduce a time evolution algorithm for one-dimensional quantum field theories with periodic boundary conditions. This is done by applying the Dirac-Frenkel time-dependent vari…
Quantum memories with zero-energy Majorana modes and experimental constraints
Matteo Ippoliti, Matteo Rizzi, Vittorio Giovannetti +1
In this work we address the problem of realizing a reliable quantum memory based on zero-energy Majorana modes in the presence of experimental constraints on the operations aimed a…
A Perturbative Approach to Continuous-Time Quantum Error Correction
Matteo Ippoliti, Leonardo Mazza, Matteo Rizzi +1
We present a novel discussion of the continuous-time quantum error correction introduced by Paz and Zurek in 1998 [Paz and Zurek, Proc. R. Soc. A 454, 355 (1998)]. We study the gen…
Robustness of quantum memories based on Majorana zero modes
Leonardo Mazza, Matteo Rizzi, Mikhail D. Lukin +1
We analyze the rate at which quantum information encoded in zero-energy Majorana modes is lost in the presence of perturbations. We show that information can survive for times that…
Quantum Memory Assisted Probing of Dynamical Spin Correlations
O. Romero-Isart, M. Rizzi, C. A. Muschik +3
We propose a method to probe time dependent correlations of non trivial observables in many-body ultracold lattice gases. The scheme uses a quantum non-demolition matter-light inte…
Critical properties of homogeneous binary trees
P. Silvi, V. Giovannetti, S. Montangero +3
Many-body states whose wave-function admits a representation in terms of a uniform binary-tree tensor decomposition are shown to obey to power-law two-body correlations functions.…
Homogeneous MERA states: an information theoretical analysis
V. Giovannetti, S. Montangero, M. Rizzi +1
Homogeneous Multi-scale Entanglement Renormalization Ansazt (MERA) state have been recently introduced to describe quantum critical systems. Here we present an extensive analysis o…
Critical exponents of one-dimensional quantum critical models by means of MERA tensor network
S. Montangero, M. Rizzi, V. Giovannetti +1
An algorithm for optimizing the MERA tensor network in an infinite system is presented. Using this technique we compute the critical exponents of Ising and XXZ model.
Simulation of time evolution with the MERA
Matteo Rizzi, Simone Montangero, Guifre' Vidal
We describe an algorithm to simulate time evolution using the Multi-scale Entanglement Renormalization Ansatz (MERA) and test it by studying a critical Ising chain with periodic bo…