18 citations · 65 across the 11 of their papers we have counts for
11 papers
Efficiency of classical simulations of a noisy Grover algorithm
Raphaël Menu, Johannes Schachenmayer
We analyze the modification of entanglement dynamics in the Grover algorithm when the qubits are subjected to single-qubit amplitude-damping or phase-flip noise. We compare quantum…
Shortcuts to adiabaticity with a quantum control field
Emma C. King, Giovanna Morigi, Raphaël Menu
Quantum adiabatic dynamics is the crucial element of adiabatic quantum computing and quantum annealing. Shortcuts to adiabaticity enable acceleration of the computational time by s…
Universal cooling of quantum systems via randomized measurements
Josias Langbehn, George Mouloudakis, Emma King +5
Designing cooling protocols is believed to require knowledge of the system spectrum. In contrast, cooling in nature occurs whenever the system is coupled to a cold bath. How does n…
Speeding up Quantum Annealing with Engineered Dephasing
Mykolas Sveistrys, Josias Langbehn, Raphaël Menu +3
Building on the insight that engineered noise, specifically, engineered dephasing can enhance the adiabaticity of controlled quantum dynamics, we investigate how a dephasing-genera…
Fractal ground state of ion chains in periodic potentials
Raphaël Menu, Jorge Yago Malo, Vladan Vuletić +2
Trapped ions in a periodic potential are a paradigm of a frustrated Wigner crystal. The dynamics is captured by a long-range Frenkel-Kontorova model. The classical ground state can…
Quantum frustrated Wigner chains
Raphaël Menu, Jorge Yago Malo, Vladan Vuletić +2
A Wigner chain in a periodic potential is a paradigmatic example of geometric frustration with long-range interactions. The dynamics emulates the Frenkel-Kontorova model with Coulo…
Adiabatic quantum trajectories in engineered reservoirs
Emma C. King, Luigi Giannelli, Raphaël Menu +2
We analyze the efficiency of protocols for adiabatic quantum state transfer assisted by an engineered reservoir. The target dynamics is a quantum trajectory in the Hilbert space an…
Rise and fall of entanglement between two qubits in a non-Markovian bath
Sayan Roy, Christian Otto, Raphaël Menu +1
We analyse the dynamics of quantum correlations between two qubits coupled to a linear chain of oscillators. The chain mediates interactions between the qubits and acts as a non-Ma…
Gaussian-state Ansatz for the non-equilibrium dynamics of quantum spin lattices
Raphaël Menu, Tommaso Roscilde
The study of non-equilibrium dynamics is one of the most important challenges of modern quantum many-body physics, in relationship with fundamental questions in quantum statistical…
Reservoir-engineering shortcuts to adiabaticity
Raphaël Menu, Josias Langbehn, Christiane P. Koch +1
We propose a protocol that achieves fast adiabatic transfer between two orthogonal states of a qubit by coupling with an ancilla. The qubit undergoes Landau-Zener dynamics, whereas…
Anomalous diffusion and localization in a positionally disordered quantum spin array
Raphaël Menu, Tommaso Roscilde
Disorder in quantum systems can lead to the disruption of long-range order in the ground state and to the localization of the elementary excitations - famous examples thereof being…