10.114 hasil
Menampilkan 1–20 · 0,24 detik · RSS
Physical Review Research
Scopus
ISSN 2643-1564 · American Physical Society · 10.114 artikel di indeks
-
Artikel Jurnal
Noisy simulations of quantum walk and quantum walk search via quantum cellular automata on a semiconducting spin processor emulator
In this work, we map noisy intermediate-scale quantum (NISQ)-friendly implementations of the noninteracting quantum cellular automata (QCA) to a circuit quantum electrodynamics (cQED) hardware. We perform both noiseless and noisy simulations of the QCA one-particle sector, namely, the quantum walk…
-
Artikel Jurnal
Quantum-enhanced phase sensing via spectral noise reduction
We report a direct demonstration of quantum-enhanced sensing in the Fourier domain by comparing single- and two-photon interference in a fiber-based interferometer under strictly identical noise conditions. The simultaneous acquisition of both signals provides a common-mode reference that enables a…
-
Artikel Jurnal
Spontaneous breaking of a continuous symmetry at a nonconformal quantum critical point in one dimension
In this work, we present numerical evidence for the spontaneous breaking of a continuous U(1) symmetry in a nearest-neighbor interacting spin-1 chain at a quantum critical point separating two XY quasi-long-range ordered phases distinguished by a spontaneously broken Z_{2} symmetry. Remarkably, the…
-
Artikel Jurnal
Identification of distortions to the Ni atomic potential at 100 GPa with temperature measurements
Characterizing the temperature of materials in high-energy-density (HED) experiments is a major gap in the benchmarking of HED matter, such as matter in the deep interiors of planets and low-mass stars. Extended x-ray absorption fine structure (EXAFS) spectroscopy is one of the few techniques…
-
Artikel Jurnal
Unconventional entanglement scaling and quantum criticality in the long-range spin-one Heisenberg chain with single-ion anisotropy
Long-range interactions can fundamentally reshape the low-energy properties of low-dimensional quantum matter, altering both continuous-symmetry breaking (CSB) and topological phenomena. However, their impact on the quantum criticality separating these regimes remains poorly understood. We…
-
Artikel Jurnal
Dephasingless laser wakefield acceleration in a plasma waveguide
Laser wakefield accelerators (LWFAs) provide extremely large accelerating gradients for compact electron accelerators and photon sources but are limited by dephasing, where trapped electrons outrun the accelerating phase of the wakefield. Flying-focus pulses can eliminate dephasing by driving a…
-
Artikel Jurnal
Compact cavity-dressed Hamiltonian framework at arbitrarily strong light-matter coupling
We present a nonperturbative Hamiltonian mapping method for quantum systems strongly coupled to a quantized field mode (cavity), yielding compact closed-form representations of hybrid light-matter systems, allowing efficient studies of equilibrium and dynamical properties. The mapping builds on an…
-
Artikel Jurnal
Pathway to Kondo physics in quantum wires coupled to a repulsive spin impurity and manifestations in ytterbium atoms
The Kondo effect is a paradigmatic model of strongly correlated physics, where a magnetic impurity forms a many-body singlet with a fermionic environment. The properties of this singlet depend sensitively on correlations within the environment, which are particularly pronounced in one dimension…
-
Artikel Jurnal
Encoding a topological gauge theory on a ring-shaped Raman-coupled Bose gas
Topological gauge theories constitute a framework for understanding strongly correlated quantum matter in terms of weakly interacting composite degrees of freedom. Their topological properties become evident when these theories are realized on a space of nontrivial topology. Here, we propose a…
-
Artikel Jurnal
Convolutional transformer wave functions
Deep neural quantum states have recently achieved remarkable performance in solving challenging quantum many-body problems. While transformer networks appear particularly promising due to their success in computer science, we show that previously reported transformer wave functions have not so far…
-
Artikel Jurnal
Phenomenology of orbital torque, pumping, and mixing conductance in metallic bilayers
The conversion between spin and orbital currents is at the origin of the orbital torque and its Onsager reciprocal, the orbital pumping. Here, we propose a phenomenological model to describe the orbital torque in magnetic bilayers composed of an orbital source (i.e., a light metal such as Ti, Ru…
-
Artikel Jurnal
Near-ultimate quantum-enhanced sensitivity in dissipative critical sensing with partial access
Quantum sensors are powerful devices that exploit quantum effects to detect minute quantities with extremely high precision. Two obstacles to harnessing the full capacity of quantum probes are the resource-intensive preparation of the probe and the need for sophisticated measurements that typically…
-
Artikel Jurnal
Brain-inspired, interpretable, resonant recurrent neural networks
Traditional artificial neural networks consist of nodes with nonoscillatory dynamics. Biological neural networks, on the other hand, consist of oscillatory components embedded in an oscillatory environment. Motivated by this feature of biological neurons, we describe a neural network framework with…
-
Artikel Jurnal
Algorithmic aspects of gauged Gaussian fermionic projected entangled pair states: Gauge fixing and translation invariance
Lattice gauge theories (LGTs) provide a powerful framework for studying nonperturbative phenomena in gauge theories. However, conventional approaches such as Monte Carlo (MC) simulations in imaginary time are limited, as they do not allow real-time evolution and suffer from a sign problem in many…
-
Artikel Jurnal
Spinor pairing order enforced by Berry phase
We introduce a class of topological pairing orders characterized by a half-integer pair monopole charge, leading to Berry phase enforced half-integer partial wave symmetry. This exotic spinor pairing order can emerge from pairing between Fermi surfaces with Chern numbers differing by an odd…
-
Artikel Jurnal
Three-dimensional and selective displacement sensing of a levitated nanoparticle via spatial mode decomposition
We propose and experimentally demonstrate a detection method that significantly improves the precision of real-time measurement of the three-dimensional (3D) displacement of a levitated dipolar scatterer. Our technique relies on spatial mode sorting of the light scattered by the levitated object…
-
Artikel Jurnal
Taxonomy of prediction
A prediction makes a claim about a system's future given knowledge of its past. A retrodiction makes a claim about its past given knowledge of its future. The bidirectional machine is an ambidextrous hidden Markov chain that does both optimally by making explicit in its state structure all…
-
Artikel Jurnal
Large deviations in non-Markovian stochastic epidemics
We develop a framework for non-Markovian, well-mixed susceptible-infected-recovered (SIR) and susceptible-infected-susceptible (SIS) models beyond mean field, utilizing the continuous-time random walk formalism. Using a gamma distribution for the infection and recovery interevent times as a test…
-
Artikel Jurnal
Measuring temporal entropies in experiments
We propose an experimental protocol to measure generalized temporal entropies in many-body quantum systems. Our approach involves using local operators as probes to characterize the out-of-equilibrium dynamics induced by a geometric double quench on a replicated system. Such protocol mimics the…
-
Artikel Jurnal
Restoring the second law to classical-quantum dynamics
All physical theories should obey the second law of thermodynamics. However, existing proposals to describe the dynamics of hybrid classical-quantum systems either violate the second law or lack a proof of its existence. Here, we rectify this by studying classical-quantum dynamics that are (1)…
Menampilkan maksimal 50 halaman. Persempit pencarian dengan filter untuk hasil yang lebih spesifik.