2.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Interdisciplinary Centre for Security, Reliability and TrustLU193 papers
- Centre National de la Recherche ScientifiqueFR133 papers
- Luxembourg Institute of Science and TechnologyLU105 papers
- Donostia International Physics CenterES66 papers
- Forschungszentrum JülichDE37 papers
- Polish Academy of SciencesPL36 papers
- University of CambridgeGB36 papers
- Luxembourg Centre for Systems BiomedicineLU34 papers
- Technische Universität BerlinDE34 papers
- University of OttawaCA34 papers
- Université de LorraineFR31 papers
- University of LiègeBE30 papers
20 papers · 2 filters
Spikes in Poissonian quantum trajectories
Alan Sherry, Cedric Bernardin, Abhishek Dhar +2
We consider the dynamics of a continuously monitored qubit in the limit of strong measurement rate where the quantum trajectory is described by a stochastic master equation with Po…
Fighting Exponentially Small Gaps by Counterdiabatic Driving
András Grabarits, Federico Balducci, Adolfo del Campo
We investigate the efficiency of approximate counterdiabatic driving (CD) in accelerating adiabatic passage through exponentially small gaps. First, we analyze a minimal spin-glass…
Canonical Form and Finite Blocklength Bounds for Stabilizer Codes
Dimiter Ostrev
First, a canonical form for stabilizer parity check matrices of arbitrary size and rank is derived. Next, it is shown that the closely related canonical form of the Clifford group…
Third-quantized master equations as a classical Ornstein-Uhlenbeck process
Léonce Dupays
Third quantization is used in open quantum systems to construct a superoperator basis in which quadratic Lindbladians can be turned into a normal form. From it follows the spectral…
Krylov Subspace Methods for Quantum Dynamics with Time-Dependent Generators
Kazutaka Takahashi, Adolfo del Campo
Krylov subspace methods in quantum dynamics identify the minimal subspace in which a process unfolds. To date, their use is restricted to time evolutions governed by time-independe…
Slow approach to adiabaticity in many-body non-Hermitian systems: the Hatano-Nelson Model
Léonce Dupays, Adolfo del Campo, Balázs Dóra
We explore the near adiabatic dynamics in a non-Hermitian quantum many-body system by investigating a finite-time ramp of the imaginary vector potential in the interacting Hatano-N…
Non-Adiabatic Quantum Optimization for Crossing Quantum Phase Transitions
András Grabarits, Federico Balducci, Barry C. Sanders +1
We consider the optimal driving of the ground state of a many-body quantum system across a quantum phase transition in finite time. In this context, excitations caused by the break…
Annealing Dynamics of Regular Rotor Networks: Universality and Its Breakdown
András Grabarits, Gaetano Sammartino, Adolfo del Campo
The spin-vector Monte Carlo model is widely used as a benchmark for the classicality of quantum annealers but severely restricts the time evolution. The spin-vector Langevin (SVL)…
Quantum Dynamics with Stochastic Non-Hermitian Hamiltonians
Pablo Martinez-Azcona, Aritra Kundu, Avadh Saxena +2
We study the quantum dynamics generated by a non-Hermitian Hamiltonian subject to stochastic perturbations in its anti-Hermitian part, describing fluctuating gains and losses. The…
Fluorescence enhancement of single V2 centers in a 4H-SiC cavity antenna
Jonathan Körber, Jonah Heiler, Philipp Fuchs +8
Solid state quantum emitters are a prime candidate in distributed quantum technologies since they inherently provide a spin-photon interface. An ongoing challenge in the field, how…
A geometrical description of non-Hermitian dynamics: speed limits in finite rank density operators
Niklas Hörnedal, Oskar A. Prośniak, Adolfo del Campo +1
Non-Hermitian dynamics in quantum systems preserves the rank of the state density operator. Using this insight, we develop a geometric framework to describe its time evolution. In…
Quantum Dynamics in Krylov Space: Methods and Applications
Pratik Nandy, Apollonas S. Matsoukas-Roubeas, Pablo Martínez-Azcona +2
The dynamics of quantum systems unfolds within a subspace of the state space or operator space, known as the Krylov space. This review presents the use of Krylov subspace methods t…
Quantum thermodynamics of the Caldeira-Leggett model with non-equilibrium Gaussian reservoirs
Vasco Cavina, Massimiliano Esposito
We introduce a non-equilibrium version of the Caldeira-Leggett model in which a quantum particle is strongly coupled to a set of engineered reservoirs. The reservoirs are composed…
Transitionless Quantum Driving of the Tomonaga-Luttinger Liquid
Léonce Dupays, Adolfo del Campo
Shortcuts to adiabaticity (STA) make the fast preparation of many-body states possible, circumventing the limitations of adiabatic strategies. We propose a fast STA protocol for ge…
Open-system eigenstate thermalization in a noninteracting integrable model
Krzysztof Ptaszynski, Massimiliano Esposito
Significant attention has been devoted to the problem of thermalization of observables in isolated quantum setups by individual eigenstates. Here, we address this issue from an ope…
Symmetry shapes thermodynamics of macroscopic quantum systems
Vasco Cavina, Ariane Soret, Timur Aslyamov +2
We derive a systematic approach to the thermodynamics of quantum systems based on the underlying symmetry groups. We show that the entropy of a system can be described in terms of…
Controlling Markovianity with Chiral Giant Atoms
Federico Roccati, Dario Cilluffo
Giant artificial atoms are promising and flexible building blocks for the implementation of analog quantum simulators. They are realized via a multi-local pattern of couplings of t…
Decoherence rate in random Lindblad dynamics
Yifeng Yang, Zhenyu Xu, Adolfo del Campo
Open quantum systems undergo decoherence, which is responsible for the transition from quantum to classical behavior. The time scale in which decoherence takes place can be analyze…
Exact Dynamics and Shortcuts to Adiabaticity in the Tomonaga-Luttinger Liquid
Léonce Dupays, Balázs Dóra, Adolfo del Campo
Controlling many-body quantum systems is a highly challenging task required to advance quantum technologies. Here, we report progress in controlling gapless many-body quantum syste…
Precise characterization of a silicon carbide waveguide fiber interface
Marcel Krumrein, Raphael Nold, Flavie Davidson-Marquis +13
Emitters in high refractive index materials like 4H-SiC suffer from reduced detection of photons because of losses caused by total internal reflection. Thus, integration into effic…