78 citations · 185 across the 11 of their papers we have counts for
11 papers
Butterfly Echo Protocol for Axis-Agnostic Heisenberg-Limited Metrology
Jacob Bringewatt, Leon Zaporski, Matthew Radzihovsky +4
The extreme sensitivity of chaotic systems to external perturbations makes them natural candidates for sensing applications. We propose a single-shot echo-based protocol for estima…
Quantum-amplified global-phase spectroscopy on an optical clock transition
Leon Zaporski, Qi Liu, Gustavo Velez +5
Optical lattice clocks (OLCs) are at the forefront of precision metrology, operating near a standard quantum limit (SQL) set by quantum noise. Harnessing quantum entanglement offer…
Many-body quantum register for a spin qubit
Martin Hayhurst Appel, Alexander Ghorbal, Noah Shofer +8
Quantum networks require quantum nodes with coherent optical interfaces and multiple stationary qubits. In terms of optical properties, semiconductor quantum dots are highly compel…
Tuning the coherent interaction of an electron qubit and a nuclear magnon
Noah Shofer, Leon Zaporski, Martin Hayhurst Appel +9
A central spin qubit interacting coherently with an ensemble of proximal spins can be used to engineer entangled collective states or a multi-qubit register. Making full use of thi…
Time-crystalline behavior in central-spin models with Heisenberg interactions
Rafail Frantzeskakis, John Van Dyke, Leon Zaporski +5
Time-crystalline behavior has been predicted and observed in quantum central-spin systems with periodic driving and Ising interactions. Here, we theoretically show that it can also…
A many-body singlet prepared by a central spin qubit
Leon Zaporski, Stijn R. de Wit, Takuya Isogawa +4
Controllable quantum many-body systems are platforms for fundamental investigations into the nature of entanglement and promise to deliver computational speed-up for a broad class…
Ideal refocusing of an optically active spin qubit under strong hyperfine interactions
Leon Zaporski, Noah Shofer, Jonathan H. Bodey +15
Combining highly coherent spin control with efficient light-matter coupling offers great opportunities for quantum communication and networks, as well as quantum computing. Optical…
Optimal purification of a spin ensemble by quantum-algorithmic feedback
Daniel M. Jackson, Urs Haeusler, Leon Zaporski +7
Purifying a high-temperature ensemble of quantum particles towards a known state is a key requirement to exploit quantum many-body effects. An alternative to passive cooling, which…
Witnessing quantum correlations in a nuclear ensemble via an electron spin qubit
Dorian A. Gangloff, Leon Zaporski, Jonathan H. Bodey +8
A coherent ensemble of spins interfaced with a proxy qubit is an attractive platform to create many-body coherences and probe the regime of collective excitations. An electron spin…
Quantum sensing of a coherent single spin excitation in a nuclear ensemble
Daniel M. Jackson, Dorian A. Gangloff, Jonathan H. Bodey +6
The measurement of single quanta in a collection of coherently interacting objects is transformative in the investigations of emergent quantum phenomena. An isolated nuclear-spin e…
Superconvergence of Topological Entropy in the Symbolic Dynamics of Substitution Sequences
Leon Zaporski, Felix Flicker
We consider infinite sequences of superstable orbits (cascades) generated by systematic substitutions of letters in the symbolic dynamics of one-dimensional nonlinear systems in th…