63 citations · 142 across the 14 of their papers we have counts for
14 papers
Optimal recoil-free state preparation in an optical atom tweezer
Lia Kley, Nicolas Heimann, Aslam Parvej +2
Quantum computing in atom tweezers requires high-fidelity implementations of quantum operations. Here, we demonstrate the optimal implementation of the transition $|0\rangle \right…
Coherent control of photoconductivity in graphene nanoribbons
H. P. Ojeda Collado, Lukas Broers, Ludwig Mathey
We study the photoconductivity response of graphene nanoribbons with armchair edges in the presence of dissipation using a Lindblad-von Neumann master equation formalism. We propos…
Hybridization of the amplitude mode in a confined fermionic superfluid
Cesar R. Cabrera, René Henke, Lukas Broers +5
In phase transitions, spontaneous symmetry breaking results in a non-zero order parameter and two collective excitations: the Goldstone and the amplitude mode. These modes, which d…
Exclusive-or encoded algebraic structure for efficient quantum dynamics
Lukas Broers, Ludwig Mathey
We propose a formalism that captures the algebraic structure of many-body two-level quantum systems, and directly motivates an efficient numerical method. This formalism is based o…
Pulse engineering via projection of response functions
Nicolas Heimann, Lukas Broers, Ludwig Mathey
We present an iterative optimal control method of quantum systems, aimed at an implementation of a desired operation with optimal fidelity. The update step of the method is based o…
Non-linear photoconductivity of strongly driven graphene
Lukas Broers, Ludwig Mathey
We present the non-linear DC photoconductivity of graphene under strong infra-red (IR) radiation. The photoconductivity is obtained as the response to a strong DC electric field, w…
Quantum Gate Optimization for Rydberg Architectures in the Weak-Coupling Limit
Nicolas Heimann, Lukas Broers, Nejira Pintul +5
We demonstrate machine learning assisted design of a two-qubit gate in a Rydberg tweezer system. Two low-energy hyperfine states in each of the atoms represent the logical qubit an…
Robustness of the Floquet-assisted superradiant phase and possible laser operation
Lukas Broers, Ludwig Mathey
We demonstrate the robustness of the recently established Floquet-assisted superradiant phase of the parametrically driven dissipative Dicke model, inspired by light-induced dynami…
Floquet Engineering of Non-Equilibrium Superradiance
Lukas Broers, Ludwig Mathey
We demonstrate the emergence of a non-equilibrium superradiant phase in the dissipative Rabi-Dicke model. This phase is characterized by a photonic steady state that oscillates wit…
Mitigated barren plateaus in the time-nonlocal optimization of analog quantum-algorithm protocols
Lukas Broers, Ludwig Mathey
Quantum machine learning has emerged as a promising utilization of near-term quantum computation devices. However, algorithmic classes such as variational quantum algorithms have b…
Detecting light-induced Floquet band gaps of graphene via trARPES
Lukas Broers, Ludwig Mathey
We propose a realistic regime to detect the light-induced topological band gap in graphene via time-resolved angle-resolved photoelectron spectroscopy (trARPES), that can be achiev…
Vortex and soliton dynamics in particle-hole symmetric superfluids
Jim Skulte, Lukas Broers, Jayson G. Cosme +1
We propose to induce topological defects in particle-hole symmetric superfluids, with the prime example of the BCS state of ultracold atoms and detect their time evolution and deca…
Observing light-induced Floquet band gaps in the longitudinal conductivity of graphene
Lukas Broers, Ludwig Mathey
We propose optical longitudinal conductivity as a realistic observable to detect light-induced Floquet band gaps in graphene. These gaps manifest as resonant features in the conduc…
Floquet dynamics in light-driven solids
M. Nuske, L. Broers, B. Schulte +6
We demonstrate how the properties of light-induced electronic Floquet states in solids impact natural physical observables, such as transport properties, by capturing the environme…