Physical Review X@PhysRevX
Nov 6
A new study examined spinning active particles that stir fluid at high Reynolds numbers, revealing a regime where fluid inertia promotes collective organization — opening new doors for bio-inspired technologies.

Read more: go.aps.org/4k25utW
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Physical Review X@PhysRevX
Nov 5
🔬Researchers measured H2 dissociation energy 5x more accurately than ever before — reaching 175 kHz precision. By analyzing para-hydrogen, the team set a new benchmark that outpaces state-of-the-art quantum theory.

Learn more: go.aps.org/4sI35Xi
A figure compares the dissociation energy results of this work to previous reported measurements. The top third of the plot is shaded pink, and labeled para-H2. The bottom section, labeled ortho-H2, is shaded blue. In the plot, points with error bars are stacked vertically and labeled with the corresponding paper they are from. From top to bottom, those labels read: This work, Beyer et al. 2019a, This Work, Holsch et al. 2019b, Cheng et al. 2018c, Altmann et al. 2018d, and Liu et al. 2009e.
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Physical Review X@PhysRevX
Nov 5
A new paper analyzes the thermodynamics of biological mixtures to derive the mathematical conditions for metastability of phase separated states — showing that Hopfield liquids can retrieve information through nucleation of target phases.

Read more: go.aps.org/4iwg5uE
Two diagrams show a multicomponent mixture with a blue background representing the solvent. The diagram labeled “Homogeneous” is a schematic of a homogeneous state. The solutes are depicted by around 30 differently colored circles randomly and roughly evenly distributed around the box. The diagram labeled “Phase separated” is a schematic of a phase separated state, where several droplets of diverse sizes and compositions can coexist. In three regions, the multicolored circles are randomly distributed or clustered to represent three droplets, one small (top right), one medium (top left) and one large (bottom).
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Physical Review X@PhysRevX
Nov 4
To celebrate our 15th anniversary, our editorial team has curated a series of collections with groundbreaking papers. The first one covers the most influential theoretical studies across topics that we’ve published in recent years.

🔗 go.aps.org/3UzWVfj
Against a dark, star-filled space background, a glowing blue ring surrounds a large white "15" at the center, marking the journal's 15th anniversary. Five illustrated research topics are arranged around the ring: a colorful visualization labeled "Diffusive hydrodynamics" at upper left; a 3D lattice of black spheres labeled "Gravitational waves" at upper center; layered blue panels with red particles and upward arrows labeled "Fractional quantum hall effect" at right; intersecting blue and gold light beams labeled "Neutral atom arrays" at lower left; and a cluster of blue and gold spheres labeled "Active colloids" at bottom center.
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Physical Review X@PhysRevX
Oct 27
A new study shows that simple, local measurements –– exponentially fewer than needed by previous methods — can be enough to certify a quantum system. The approach is robust to noise and fixes a bottleneck in developing larger quantum computers.

More: go.aps.org/4kcYSc4
A diagram depicting the concept of localizable quantumness. A white oval, labeled HA, contains a smaller yellow oval, representing the free projected state set, with eight gray diamonds scattered randomly. Seven blue dots sit within the larger white oval, all outside the yellow oval except one. If the target state exhibits localizable quantumness, then its projected ensemble, shown by the blue dots, differs significantly from the projected ensemble of any free state ρ, shown by the grey diamonds. This difference can be utilized to certify the quantumness of the target state by examining the small subsystem A.
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Physical Review X@PhysRevX
Oct 27
Neutron scattering experiments with DyPtBi show that applying uniaxial stress alignes magnetic domains, eliminating conductive domain walls and driving a 14% increase in resistivity below the transition temperature.

Read more: go.aps.org/47NQpVp
Schematic of an antiphase boundary in an antiferromagnetic topological insulator. Two cuboids sit next to each other. The left is pink with a blue horizontal layer through its middle, the right is blue with a pink layer through its middle. Both have thin red arrows located at the domain boundaries running counter-clockwise on the left cuboid’s top surface and clockwise on the right one, representing the chiral edge current. Short thick red arrows point out of the surface of the left cuboid, positive z-direction, denoting the magnetic moments pointing upward. On the right, short blue arrows denote the magnetic moments point down. Above the cuboids are curved black lines schematically showing the surface band structures and surface Brillouin zone for respective domains and their boundaries. A + on the left and a − on the right indicate the signs of the Chern number.
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Physical Review X@PhysRevX
Oct 26
How does energy limit what chemical networks can do? To find out, researchers derived bounds on chemical concentrations and reaction driving forces, helping explain biological function and guide the design of lifelike artificial systems.

Read more: go.aps.org/4i2S4fK
A two-panel diagram illustrating how energy constrains a chemical reaction network. At left, clusters of pink shapes represent chemical species connected by reaction pathways within a blue network supplied with fuel by a chemical reservoir. Red and blue paths highlight those that set the thermodynamic limits. At right, a graph with logarithmic concentration axes shows a green band between a red upper bound and a blue lower bound. This bound is the thermodynamic space containing the possible steady-state concentrations. Its width increases with the nonequilibrium driving force, showing how a larger energy budget expands the network’s operating range.
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Physical Review X@PhysRevX
Oct 24
Using the most recent LIGO-Virgo gravitational wave data, a study places new constraints on a number of high-energy particle physics models at energy scales that can’t be reached by current particle accelerators.

Read the study: go.aps.org/47DmaAt
An abstract depiction of gravitational waves, shown as black ripples in the background with two intersecting beams in the foreground. Above is a pastel-colored cloud filled with spheres and squiggly lines.
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Physical Review X@PhysRevX
Oct 23
How do you find topological phases that symmetry indicators can't capture? A new paper constructs topological invariants systematically from the Atiyah-Hirzebruch spectral sequence, fully classifying superconductors in 159 of 230 space groups.

More: go.aps.org/4eRPNBV
Rectangle diagram titled “All 3D topological phases in K-theory.” A large yellow rectangle represents 2D topological invariants and is divided into three columns: Gapless, TI/TSC, and Atomic states. Inside it is a smaller orange rectangle (1D invariants), with a red-and-orange striped region within labeled "Symmetry indicators.” A small green rectangle (3D invariants) sits on top of the TI/TSC column. A legend on the right identifies each color: red for 0D, orange for 1D, yellow for 2D, and green for 3D invariants.
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Physical Review X@PhysRevX
Oct 23
Quantum entanglement can give precision sensing a major edge, finds a new study. Researchers show quantum speedups for learning classical signals, opening new possibilities for electromagnetic sensing and gravitational wave detection.

📄 go.aps.org/4iaoUKl
A two-panel diagram comparing conventional and quantum-enhanced sensing of classical fields. In the top panel, conventional sensing measures a complex field along selected axes, producing separate projections that lose information, or a blurred distribution due to added vacuum noise. In the bottom panel, quantum-enhanced Bell Quantum Signal Learning uses entangled two-mode squeezed states, with one mode probing the field and the other stored as a reference. Beam splitters and homodyne measurements combine the modes to recover multiple properties of the field with greater precision and without choosing a single measurement direction in advance.
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Physical Review X@PhysRevX
Oct 22
Sharp edges and strange physics: Superconductor FeTe0.55Se0.4 shows a conductance plateau that only shows up on clean crystal edges and disappears near the temperature where the material turns spontaneously magnetic.

Read more: go.aps.org/48eQJwp
Top row: two scanning electron microscope images on a dark blue-green background, each with a white "1 µm" scale bar. Left image labeled "Rough" shows an electrode tip with a jagged edge. Right image labeled "Sharp" shows an electrode tip with a smooth edge. Bottom row: two line graphs plotting conductance G(S) against voltage (mV, from -10 to 10) both labeled "FeTe0.55Se0.4 ." Left graph, labeled “Rough," RN = 106 Ω, shows a red line with a single sharp peak centered at zero voltage. Right graph, labeled "Sharp," RN = 276 Ω, shows a blue line forming a flat-topped plateau between about -2 and 2 mV.
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Physical Review X@PhysRevX
Oct 21
How can researchers overcome current limits to studying complex dynamics in open quantum systems? A study introduces a scalable tensor-network framework that uses complex-time evolution to calculate steady states and low-lying Lindbladian eigenstates: go.aps.org/4jzegPU
A schematic showing two sets of arrows extending from a central point in 3D space. Black axes extend from the center, and a light gray grid forms a background. Orange arrows on the left are labeled “Tr ρ = 1,” while blue arrows on the right are labeled “Tr ρ = 0.” Each set follows a red triangular path marked with time-evolution expressions. At the bottom in the gridded space are labels “𝒦₀” in orange and “𝒦α” in blue.
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Physical Review X@PhysRevX
Oct 21
A new framework extends the classical Bogoliubov–Born–Green–Kirkwood–Yvon hierarchy for many-body systems to encompass both weakly-interacting particles and systems with strong, short-range, integrable interactions.

Check it out: go.aps.org/3UF3OvZ
Panel (a) consists of a graph plotting the dynamics of kurtosis of rapidity distribution as a function of rescaled time on the x-axis. The graph contains six lines corresponding to V0 = 1 (dark blue), V0 = 2 (medium blue), V0 = 3 (light blue), V0 = 4 (light green), V0 = 5 (medium green), and V0 = 6 (dark green). Panel (b) plots the evolutions of distributions of rapidity on the y-axis, rescaled time on the y-axis, and 𝛳 on the z-axis. HR for V0 = 4 is plotted with a light blue line, and gBBGKY for V0 = 4 is plotted with a dark blue line. Panels (c, e, f) present similar graphs plotting the evolution two-point correlation function. Panel (d) presents a similar graph as panel (a), plotting the dynamics of the kinetic energy function. In all the graphs, dots represent the molecular dynamics of the system while solid lines represent the prediction by gBBGKY.
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Physical Review X@PhysRevX
Oct 20
🌀 What happens when you squeeze a moiré superlattice? A study shows hydrostatic pressure pushes WSe₂/WS₂ moiré superlattices into a strong-moiré regime, offering a new strategy for excitonic wavefunction engineering.

Read more: go.aps.org/3U5YyBo
Six-panel figure on black, arranged in two rows of three. Each panel except top-right shows a purple-to-yellow heatmap with a white parallelogram outline marking the moiré unit cell and a green dot marking a fixed hole position. Some show a single bright glowing blob, others show three bright spots at the parallelogram's corners, and one shows a glow at the center and corner. The top-right panel is a separate schematic with red and blue circles showing electron and hole doping with curved arrows.
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Physical Review X@PhysRevX
Oct 19
Researchers zapped MgO with a laser hard enough to mimic the pressures and temps deep inside planets. They found that crystal orientation changes how the material transforms and melts, helping refine models of matter under such extreme conditions.

More: go.aps.org/3UvJDR4
A phase map of shock-compressed MgO showing temperature versus pressure for three crystal orientations: [111] shown in red, [110] in blue, and [100] in green. The measurements follow different paths through the B1 and B2 solid phases before converging near complete melting at about 572 GPa and 13,200 K. X-ray diffraction ranges below the plot show orientation-dependent B1-to-B2 transition behavior. An inset compares MgO’s melt curve with those of Ta, Fe, SiO2, diamond, and MgSiO3, showing MgO’s unusually high melting temperature. A top axis relates pressure to estimated core-mantle boundary pressures in super-Earths.
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Physical Review X@PhysRevX
Oct 15
New work shows nonsymmorphic symmetries, like glides or screws, can host time-reversal-doubled axion insulator phases. It proposes measurable topological spin responses and predicts synthesizable material candidates.

Read more: go.aps.org/4jYu26M
Two diagrams with x-y-z axes show topological charge polarization induced by an external magnetic field in a magnetic AXI, and topological nonlocal spin polarization induced by an external magnetic field in a T-DAXI. Both diagrams show a green cuboid, labeled either “AXI” or “T-DAXI,” with a red arrow labeled either “P” or “Ps,” representing the induced charge polarization, and an external magnetic field, B, both pointing upward. For AXI, positive-charge circles run along the bottom and negative-charge circles run along the top. For T-DAXI, left-pointing arrows, representing “spin sy down,” run along the bottom and right-pointing arrows, representing “spin sy up,” run along the top.
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Physical Review X@PhysRevX
Oct 15
Non-Abelian quantum signal processing is a new framework that enables noise-resilient control directly at the oscillator level for hybrid quantum processors. The results are compatible with superconducting-circuit and trapped-ion platforms.

Read more: go.aps.org/4eeSdKB
A bell-shaped normal distribution shown in blue–symmetric and peaking at x = α. Below the curve is a series of five green circle clocks with one hand. From left to right, the hand rotates from roughly the 11 o’clock position counter clockwise to roughly 7 o’clock, with 9 o’clock sitting under the bell curve peak. The clocks represent the Bloch state projections of a qubit. The bell curve is a probability distribution of the oscillator position. The spread of ticks in the clock around the target state on the yz-plane of the Bloch sphere illustrates the over- and under-rotations arising from Gaussian position uncertainty.
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Physical Review X@PhysRevX
Oct 14
What’s hidden inside hematite? Applying an electric field breaks its inversion symmetry, unmasking multipolar order that’s normally hidden. New research traces this to a magnetic toroidal octupole and quadrupole.

Read the paper: go.aps.org/3TVGc5O
Diagram illustrating hematite's crystal and magnetic structure across a temperature scale from TM ≈ 255 K to TN ≈ 950 K. Three 3D rhombus-shaped structures are shown side by side, each containing orange spheres (Fe³⁺ ions) connected by gray spheres (O²⁻ ions). Red arrows show spin orientation. A legend identifies the orange and gray spheres. Below, two hexagonal top-down views show red arrows for L and black arrows for M pointing in different directions.
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Physical Review X@PhysRevX
Oct 14
🧲 Why is spin 3/2 special in frustrated magnets? A new study uses local conservation rules on the lattice to explain why it undergoes an abrupt phase transition while other spin values exhibit continuous transitions. Read more: go.aps.org/4zACrSL
Two diagrams each showing four arrows meeting at a central vertex. On the left, for spin 3/2, the arrows are labeled 1, 1, 1, and 3. On the right, for spin 2, the arrows are all labeled 1.
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Physical Review X@PhysRevX
Oct 13
When a Haar random state splits into two subsystems, they are highly entangled. But when divided into three, a new paper shows that bipartite entanglement cannot be distilled unless one subsystem holds at least half the total qubits.

Read the study: go.aps.org/4yn3wrf
An illustration of the question of whether subsystems exhibit entanglement when a Haar random state is partitioned into three. A circle is separated into three pie pieces containing six (A), seven (B), and five (C) qubits. Arrows point between two sets of qubits from two different pie components, questioning whether they are entangled.
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