308 citations · 1.8k across the 32 of their papers we have counts for
7 papers · 2 filters
Observation of discrete time-crystalline order in a disordered dipolar many-body system
Soonwon Choi, Joonhee Choi, Renate Landig +11
Understanding quantum dynamics away from equilibrium is an outstanding challenge in the modern physical sciences. It is well known that out-of-equilibrium systems can display a ric…
Observing Topological Invariants Using Quantum Walk in Superconducting Circuits
Emmanuel Flurin, Vinay V. Ramasesh, Shay Hacohen-Gourgy +3
The direct measurement of topological invariants in both engineered and naturally occurring quantum materials is a key step in classifying quantum phases of matter. Here we motivat…
Direct Probe of Topological Invariants Using Bloch Oscillating Quantum Walks
Vinay V. Ramasesh, Emmanuel Flurin, Mark S. Rudner +2
The topology of a single-particle band structure plays a fundamental role in understanding a multitude of physical phenomena. Motivated by the connection between quantum walks and…
Observation of a Discrete Time Crystal
J. Zhang, P. W. Hess, A. Kyprianidis +9
Spontaneous symmetry breaking is a fundamental concept in many areas of physics, ranging from cosmology and particle physics to condensed matter. A prime example is the breaking of…
Depolarization dynamics in a strongly interacting solid-state spin ensemble
Joonhee Choi, Soonwon Choi, Georg Kucsko +9
We study the depolarization dynamics of a dense ensemble of dipolar interacting spins, associated with nitrogen-vacancy centers in diamond. We observe anomalously fast, density-dep…
Interferometric Approach to Probing Fast Scrambling
Norman Y. Yao, Fabian Grusdt, Brian Swingle +4
Out-of-time-order correlation functions provide a proxy for diagnosing chaos in quantum systems. We propose and analyze an interferometric scheme for their measurement, using only…