Η. Meier
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Training humans for synthetic face image detection Open
Fake identities created using highly realistic synthetic face images have become increasingly prevalent in recent years, driven by advancements in generative neural networks that are readily accessible online and easy to use. These fake id…
View article: Qudit Entanglers Using Quantum Optimal Control
Qudit Entanglers Using Quantum Optimal Control Open
We study the generation of two-qudit entangling quantum logic gates using two techniques in quantum optimal control. We take advantage of both continuous, Lie algebraic control and digital, Lie group control. In both cases, the key is acce…
Qudit entanglers using quantum optimal control Open
We study the generation of two-qudit entangling quantum logic gates using two techniques in quantum optimal control. We take advantage of both continuous, Lie-algebraic control and digital, Lie-group control. In both cases, the key is acce…
Nonlinear Dynamics in a Synthetic Momentum-State Lattice Open
The scope of analog simulation in atomic, molecular, and optical systems has expanded greatly over the past decades. Recently, the idea of synthetic dimensions-in which transport occurs in a space spanned by internal or motional states cou…
Interactions and Mobility Edges: Observing the Generalized Aubry-André Model Open
Using synthetic lattices of laser-coupled atomic momentum modes, we experimentally realize a recently proposed family of nearest-neighbor tight-binding models having quasiperiodic site energy modulation that host an exact mobility edge pro…
Counterdiabatic control of transport in a synthetic tight-binding lattice Open
Quantum state transformations that are robust to experimental imperfections\nare important for applications in quantum information science and quantum\nsensing. Counterdiabatic (CD) approaches, which use knowledge of the underlying\nsystem…
Momentum-space lattices for ultracold atoms Open
As the progress of science pushes the frontiers of studying nature to both the extremely large scale and the incredibly small scale, experiments can become increasingly difficult to perform. Therefore, a scale model experiment for these ki…
Exploring quantum signatures of chaos on a Floquet synthetic lattice Open
Ergodicity and chaos play an integral role in the dynamical behavior of\nmany-particle systems and are crucial to the formulation of statistical\nmechanics. Still, a general understanding of how randomness and chaos emerge in\nthe dynamica…
Observation of the topological Anderson insulator in disordered atomic wires Open
A messy topological wire Adding irregularity to a system can lead to a transition from a more orderly to a less orderly phase. Meier et al. demonstrated a counterintuitive transition in the opposite direction: Controlled fluctuations in th…
Correlated Dynamics in a Synthetic Lattice of Momentum States Open
We study the influence of atomic interactions on quantum simulations in momentum-space lattices (MSLs), where driven transitions between discrete momentum states mimic transport between sites of a synthetic lattice. Low-energy atomic colli…
CCDC 1879237: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
CCDC 1879258: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
Flux-dependent localisation in a disordered flat-band lattice Open
Physical systems with high ground state degeneracy, such as electrons in large magnetic fields [1, 2] and geometrically frustrated spins [3], provide a rich playground for exploring emergent many-body phenomena. Quantum simulations with co…
Direct observation of chiral currents and magnetic reflection in atomic flux lattices Open
Inducing atomic chiral currents and magnetic reflection with artificial magnetic fields in fully synthetic lattices.
Ballistic, diffusive, and arrested transport in disordered momentum-space lattices Open
Ultracold atoms in optical lattices offer a unique platform for investigating disorder-driven phenomena. While static disordered site potentials have been explored in a number of optical lattice experiments, a more general control over sit…
Atom-optics simulator of lattice transport phenomena Open
We experimentally investigate a scheme for studying lattice transport phenomena, based on the controlled momentum-space dynamics of ultracold atomic matter waves. In the effective tight-binding models that can be simulated, we demonstrate …
Self-Excited Non-Linear Acoustic Wave in a Single-Element Model Rocket Combustor and Its Influence on Flame Open
Self-excited combustion oscillations in a model rocket combustor is investigated experimentally. A unique dump combustor, CVRC (Continuously Variable Resonance Combustor), is employed to realize a well-controlled self-excitation. The combu…