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Isotope engineering for spin defects in van der Waals materials
Ruotian Gong, Xinyi Du, Eli Janzen +9
Spin defects in van der Waals materials offer a promising platform for advancing quantum technologies. Here, we propose and demonstrate a powerful technique based on isotope engine…
Boundary Strong Zero Modes
Christopher T. Olund, Norman Y. Yao, Jack Kemp
Strong zero modes are edge-localized degrees of freedom capable of storing information at infinite temperature, even in systems with no disorder. To date, their stability has only…
Colloquium: Quantum and Classical Discrete Time Crystals
Michael P. Zaletel, Mikhail Lukin, Christopher Monroe +3
The spontaneous breaking of time translation symmetry has led to the discovery of a new phase of matter - the discrete time crystal. Discrete time crystals exhibit rigid subharmoni…
Scalable spin squeezing in a dipolar Rydberg atom array
Guillaume Bornet, Gabriel Emperauger, Cheng Chen +11
The standard quantum limit bounds the precision of measurements that can be achieved by ensembles of uncorrelated particles. Fundamentally, this limit arises from the non-commuting…
Comment on "Traversable wormhole dynamics on a quantum processor"
Bryce Kobrin, Thomas Schuster, Norman Y. Yao
A recent article [Nature 612, 51-55 (2022)] claims to observe traversable wormhole dynamics in an experiment. This claim is based upon performing a teleportation protocol using a H…
Scalable Spin Squeezing from Finite Temperature Easy-plane Magnetism
Maxwell Block, Bingtian Ye, Brenden Roberts +7
Spin squeezing is a form of entanglement that reshapes the quantum projection noise to improve measurement precision. Here, we provide numerical and analytic evidence for the follo…
Quasi-Floquet prethermalization in a disordered dipolar spin ensemble in diamond
Guanghui He, Bingtian Ye, Ruotian Gong +4
Floquet (periodic) driving has recently emerged as a powerful technique for engineering quantum systems and realizing non-equilibrium phases of matter. A central challenge to stabi…
Quantum noise spectroscopy of dynamical critical phenomena
Francisco Machado, Eugene A. Demler, Norman Y. Yao +1
The transition between distinct phases of matter is characterized by the nature of fluctuations near the critical point. We demonstrate that noise spectroscopy can not only diagnos…
Exploiting disorder to probe spin and energy hydrodynamics
Pai Peng, Bingtian Ye, Norman Y. Yao +1
An outstanding challenge in large-scale quantum platforms is to simultaneously achieve strong interactions, giving rise to the most interesting behaviors, and local addressing -tha…
Operator Growth in Open Quantum Systems
Thomas Schuster, Norman Y. Yao
The spreading of quantum information in closed systems, often termed scrambling, is a hallmark of many-body quantum dynamics. In open systems, scrambling competes with noise, error…
Universal Kardar-Parisi-Zhang dynamics in integrable quantum systems
Bingtian Ye, Francisco Machado, Jack Kemp +2
Although the Bethe ansatz solution of the spin-1/2 Heisenberg model dates back nearly a century, the anomalous nature of its high-temperature transport dynamics has only recently b…
Interactive Protocols for Classically-Verifiable Quantum Advantage
Daiwei Zhu, Gregory D. Kahanamoku-Meyer, Laura Lewis +15
Achieving quantum computational advantage requires solving a classically intractable problem on a quantum device. Natural proposals rely upon the intrinsic hardness of classically…
Absolutely stable time crystals at finite temperature
Francisco Machado, Quntao Zhuang, Norman Y. Yao +1
We show that locally-interacting, periodically-driven (Floquet) Hamiltonian dynamics coupled to a Langevin bath support finite-temperature discrete time crystals (DTC) with an infi…
Observation of a many-body-localized discrete time crystal with a programmable spin-based quantum simulator
J. Randall, C. E. Bradley, F. V. van der Gronden +7
The discrete time crystal (DTC) is a recently discovered phase of matter that spontaneously breaks time-translation symmetry. Disorder-induced many-body-localization is required to…
The Measurement-induced Transition in Long-range Interacting Quantum Circuits
Maxwell Block, Yimu Bao, Soonwon Choi +2
The competition between scrambling unitary evolution and projective measurements leads to a phase transition in the dynamics of quantum entanglement. Here, we demonstrate that the…
Emergent hydrodynamics in a strongly interacting dipolar spin ensemble
Chong Zu, Francisco Machado, Bingtian Ye +12
Conventional wisdom holds that macroscopic classical phenomena naturally emerge from microscopic quantum laws. However, despite this mantra, building direct connections between the…
Floquet Phases of Matter via Classical Prethermalization
Bingtian Ye, Francisco Machado, Norman Y. Yao
We demonstrate that the prethermal regime of periodically driven (Floquet), classical many-body systems can host nonequilibrium phases of matter. In particular, we show that there…
Classically-Verifiable Quantum Advantage from a Computational Bell Test
Gregory D. Kahanamoku-Meyer, Soonwon Choi, Umesh V. Vazirani +1
We propose and analyze a novel interactive protocol for demonstrating quantum computational advantage, which is efficiently classically verifiable. Our protocol relies upon the cry…
Probing many-body dynamics in a two dimensional dipolar spin ensemble
Emily J. Davis, Bingtian Ye, Francisco Machado +13
The most direct approach for characterizing the quantum dynamics of a strongly-interacting system is to measure the time-evolution of its full many-body state. Despite the conceptu…
Observation of a prethermal discrete time crystal
Antonis Kyprianidis, Francisco Machado, William Morong +9
The conventional framework for defining and understanding phases of matter requires thermodynamic equilibrium. Extensions to non-equilibrium systems have led to surprising insights…
Many-body quantum teleportation via operator spreading in the traversable wormhole protocol
Thomas Schuster, Bryce Kobrin, Ping Gao +7
By leveraging shared entanglement between a pair of qubits, one can teleport a quantum state from one particle to another. Recent advances have uncovered an intrinsically many-body…
Optically Enhanced Electric Field Sensing Using Nitrogen-Vacancy Ensembles
M. Block, B. Kobrin, A. Jarmola +8
Nitrogen-vacancy (NV) centers in diamond have shown promise as inherently localized electric-field sensors, capable of detecting individual charges with nanometer resolution. Worki…
Symmetry enhanced boundary qubits at infinite temperature
Jack Kemp, Norman Y. Yao, Chris R. Laumann
The symmetry protected topological (SPT) phase hosts a robust boundary qubit at zero temperature. At finite energy density, the SPT phase is dest…
Spatial Coherence of a Strongly Interacting Bose Gas in the Trimerized Kagome Lattice
Thomas H. Barter, Tsz-Him Leung, Masayuki Okano +3
We produce a trimerized kagome lattice for ultracold atoms using an optical superlattice formed by overlaying triangular lattices generated with two colors of light at a 2:1 wavele…