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Physical Review X
Scopus
ISSN 2160-3308 · American Physical Society · 3.245 artikel di indeks
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Artikel Jurnal
Electronic Structure of Compressively Strained Bilayer Nickelate Thin Film
The discovery of superconductivity in bulk bilayer nickelates under high pressure, and its subsequent stabilization in compressively strained thin films at ambient pressure, has established a new platform for exploring high-T_{c} superconductivity beyond the cuprates. Central to this development is…
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Artikel Jurnal
Chaotic Many-Body Quantum Dynamics, Spectral Correlations, and Energy Diffusion
We study chaotic many-body quantum dynamics in a minimal model with spatial structure and local interactions. It has a time-independent Hamiltonian, in contrast to quantum circuits and Brownian models, and is simple at the single-site level, in contrast to Sachdev-Ye-Kitaev chains. It is…
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Artikel Jurnal
Generating Arbitrary Superpositions of Nonclassical Quantum Harmonic Oscillator States
Full coherent control and generation of nonclassical superpositions of the quantum harmonic oscillator are not only of fundamental interest but are crucial for applications in quantum simulations, quantum-enhanced metrology, and continuous-variable quantum computation. Here, we create arbitrary…
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Reconfigurable Dissipative Entanglement between Many Spin Ensembles: From Robust Quantum Sensing to Many-Body State Engineering
An attractive approach for stabilizing entangled many-body spin states is to employ engineered dissipation. Most existing proposals either target relatively simple collective spin states or require numerous independent and complex dissipative processes. Here, we show a surprisingly versatile scheme…
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Artikel Jurnal
Three-Dimensional XY Universality and Nonlinear Magnetic Susceptibility in a Kagome Ice Compound
Kagome spin ice is an intriguing class of spin systems constituted by in-plane Ising spins with ferromagnetic interaction residing on the kagome lattice, theoretically predicted to host a plethora of magnetic transitions and excitations. In particular, different variants of kagome spin ice models…
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Artikel Jurnal
Anyon Superfluidity of Excitons in Quantum Hall Bilayers
The charged anyons of a fractional quantum Hall fluid are necessarily dispersionless due to the continuous magnetic translation symmetry. Neutral anyons, however, can disperse, resulting in a much richer space of possible “daughter” states when doped to finite density. We discuss a natural…
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Artikel Jurnal
Super-resonance: Breaking the Bandwidth Limit of Resonant Modes and Its Application to Flow Control
We report the discovery of super-resonance—a new regime of resonant behavior in which a mode’s out-of-phase response persists far beyond its classical bandwidth. This effect emerges from a coiled phononic structure composed of a locally resonant elastic metamaterial and architected to support…
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Artikel Jurnal
Robust Orbital-Selective Flat Bands in Layered Transition-Metal Oxyhalides at Room Temperature
Flat electronic bands, which amplify electron correlations by quenching kinetic energy, provide an ideal foundation for exotic quantum phases. However, prevailing strategies—including geometrically frustrated lattices, moiré superlattices, and heavy-fermion systems—often suffer from inherent…
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Artikel Jurnal
Nondestructive Optical Readout and Manipulation of Circular Rydberg Atoms
Among the thriving quantum computation and quantum simulation platforms based on arrays of Rydberg atoms, those using circular Rydberg atoms are particularly promising. These atoms uniquely combine the strong dipole-dipole interactions typical of Rydberg states with long lifetimes. However…
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Passive Quantum Error Correction of Photon Loss at Breakeven
Physical qubits in a quantum computer are often represented by superposition states of single particles or excitations. Decay of the excitation itself is a fundamental error channel that is difficult to overcome via external drive or control techniques. Quantum error correcting codes, which encode…
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Artikel Jurnal
Emergent Random Matrix Universality in Quantum Operator Dynamics
The high complexity of many-body quantum dynamics means that essentially all analytical or numerical approaches either exploit special structure or are approximate in nature. One such approach—the memory function formalism—involves a carefully chosen split into “fast” and “slow” modes. An…
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Artikel Jurnal
Quantum Coherent Transport of 1D Ballistic States in Second-Order Topological Insulator Bi_{4}Br_{4}
We investigate quantum transport in micrometer-sized single crystals of Bi_{4}Br_{4}, a material predicted to be a second-order topological insulator. 1D topological states with long phase coherence times are revealed via the modulation of quantum interference with magnetic field and gate voltage…
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Artikel Jurnal
Characterizing Physical and Logical Errors in a Transversal CNOT Gate via Cycle Error Reconstruction
The development of prototype quantum information processors has progressed to a stage where small instances of logical qubit systems perform better than the best of their physical constituents. Advancing toward fault-tolerant quantum computing will require an understanding of the underlying error…
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Real-Time Adaptive Tracking of Fluctuating Relaxation Rates in Superconducting Qubits
The fidelity of operations on a solid-state quantum processor is fundamentally bounded by environmental decoherence. Characterizing environmental fluctuations is challenging because the acquisition time of nonadaptive experimental protocols limits temporal precision and can average out rapid…
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Artikel Jurnal
Reshaping the Quantum Arrow of Time
While the microscopic laws of physics are often symmetric under time reversal, most natural processes that we observe are not. The emergent asymmetry between typical and time-reversed processes is referred to as the arrow of time. In quantum physics, an arrow of time emerges when a sequence of…
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Artikel Jurnal
Anomalies of Global Symmetries on the Lattice
’t Hooft anomalies of global symmetries play a fundamental role in quantum many-body systems and quantum field theory (QFT). In this paper, we make a systematic analysis of lattice anomalies—the analog of ’t Hooft anomalies in lattice systems—for which we give a precise definition. Crucially, a…
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Artikel Jurnal
Microscopic Fingerprint of Chiral Superconductivity
Chiral superconductors have long been theorized to break time-reversal symmetry and support exotic topological features such as Majorana modes and spontaneous edge currents, promising ingredients for quantum technologies. Although several unconventional superconductors may exhibit time-reversal…
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Yang-Lee Quantum Criticality in Various Dimensions
The Yang-Lee universality class arises when an imaginary magnetic field is tuned to its critical value in the paramagnetic phase of the d
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Artikel Jurnal
Monitored Fluctuating Hydrodynamics
We introduce a hydrodynamic framework for describing monitored classical stochastic processes. We study the conditional ensembles for these monitored processes—i.e., we compute spacetime correlation functions conditioned on a fixed, typical measurement record. In the presence of global symmetries…
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Artikel Jurnal
Unifying Same- and Different-Material Particle Charging through Stochastic Scaling
Triboelectric charging of insulating particles through contact is critical in diverse physical and engineering processes, from dust storms and volcanic eruptions to industrial powder handling. However, many experiments over the years have consistently revealed counterintuitive charging patterns…
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