Science · 2026-11-04
How to say 'no' to your child—and stick to it
"No" may be one of the hardest words for parents to say to a young child.
Phys.org ResearchRead article →DISCOVERY LIBRARY · SCIENTIFIC RESEARCH
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1178 matching published research entries
Science · 2026-11-04
Drying harvested blue-green algae sludge halves methane emissions in experiments
In some lakes around the world, including some in China, cyanobacterial blooms are increasingly managed through large-scale mechanical harvesting to improve water quality and ensure a continued supply of drinking water.
Phys.org ResearchRead article →Science · 2026-11-04
Why AI influencers work better with a human friend
Scroll through Instagram long enough and you'll meet an influencer who isn't real. AI influencers—computer-generated personalities like Lil Miquela, who has millions of followers and has posted for Prada, Samsung and Dior—look and act like human creators, but they're entirely synthetic. Brands like them because they never go off-script, never age and never cause a scandal.
Phys.org ResearchRead article →Science · 2026-11-04
California wildfire explained: Trends and policy insights highlight pathways to avoiding disasters
California has had relatively few major wildfires since the January 2025 Los Angeles fires, but unmet priorities could spell disaster at any time.
Phys.org ResearchRead article →Science · 2026-11-04
Enjoyment increases consumers' willingness to pay for sustainable products
Consumers are more willing to pay for sustainable products if they also perceive them as enjoyable and appealing, according to a study conducted at the University of Eastern Finland. However, environmental friendliness alone does not always translate into willingness to pay.
Phys.org ResearchRead article →Science · 2026-11-04
Research reveals accelerating sea-level rise around Ireland
A new study led by the ICARUS Climate Research Center at Maynooth University in Ireland has reconstructed a century of Irish sea-level change, revealing a stark acceleration in sea-level rise. The research, titled "A Century of Sea-Level Change in Ireland (1925–2024)" and published in Ocean Science, combines tide-gauge records from six locations, including newly digitized historical records from Cork, Tarbert and…
Phys.org ResearchRead article →Science · 2026-11-04
Call adjustments help bats keep their echolocation signals distinct, study finds
Bats can produce ultrasonic pulses with high frequencies between 20,000 and 120,000 hertz, which are inaudible to humans. The sound waves they produce travel forward, hitting nearby objects and bouncing back in the form of echoes.
Phys.org ResearchRead article →Science · 2026-11-04
Toxic air pollution surges in Indian capital
Toxic air pollution in India's capital, New Delhi, surged on Wednesday to more than 30 times the World Health Organization's recommended daily limit, data from air monitors showed.
Phys.org ResearchRead article →Science · 2026-11-04
Six measures could save 1.6 million lives a year: WHO
Implementing a few climate and health measures could save nearly 1.6 million lives a year and generate trillions of dollars for the economy, the World Health Organization said Wednesday.
Phys.org ResearchRead article →Science · 2026-11-04
Study calls for a rethink on how we manage the threats posed by hazardous species
While human well-being depends on the health of our ecosystems, there are also countless aspects of the natural world that pose serious threats to people. Every year, over 700,000 people die from diseases transmitted by animals, snakebites kill up to 500,000 people, and crop loss from pests carries an estimated cost of around $220 billion.
Phys.org ResearchRead article →Space & Discovery · 2026-11-04
Before the Dawn in America’s Heartland
With hardly a cloud in sight, astronauts had a sweeping view of nighttime lights in the U.S. Midwest.
NASARead article →Space & Discovery · 2026-11-04
APOD: 2026 November 4 – The Not-So-Hidden Galaxy, IC 342
APOD Science APOD APOD: 2026 November 4 – The… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. The Not-So-Hidden […]
NASARead article →Quantum Research · 2026-11-04
On Random Purifications of Isometries and Channels
arXiv:2611.04573v1 Announce Type: new Abstract: Acorn tricks turn weak quantum resources into stronger "randomized" ones. A recent example is the random purification channel, which turns $t$ copies of a mixed state into $t$ copies of a random purification.
arXiv QuantumRead article →Quantum Research · 2026-11-04
Time-invariant negativity and persistent bound entanglement in a cyclic two-qutrit family
arXiv:2611.04568v1 Announce Type: new Abstract: We study the entanglement dynamics of two qutrits under collective dephasing for a family of states obtained by mixing a maximally entangled state that lives in the decoherence-free subspace with three nonstationary two-term states sharing a common amplitude ratio $r$.
arXiv QuantumRead article →Quantum Research · 2026-11-04
Wigner-Function Fingerprints of Collective Excitations in Mirror-Terminated Waveguide QED
arXiv:2611.04553v1 Announce Type: new Abstract: We investigate the emission profiles of singly excited collective states and propose a matched-mode witnessing protocol in a mirror-terminated waveguide quantum electrodynamics system. The amplitudes and relative phases of the initial collective excitation are encoded in the temporal mode of the emitted single-photon wavepacket, providing a route to state verification…
arXiv QuantumRead article →Quantum Research · 2026-11-04
Decoy-state quantum key distribution with a leaky Mach-Zehnder receiver
arXiv:2611.04539v1 Announce Type: new Abstract: We prove the security of phase-encoded decoy-state BB84 quantum key distribution for a Mach-Zehnder receiver with imbalanced beam splitters and two threshold detectors that leak fine-grained information about the detection patterns.
arXiv QuantumRead article →Quantum Research · 2026-11-04
Long-lived quantum memories with rare-earth ions doped in crystals
arXiv:2611.04526v1 Announce Type: new Abstract: Quantum memory is a core enabling device for large-scale quantum networks, serving as the fundamental building block for quantum repeaters and transportable quantum memories. Among various physical platforms, rare-earth-ion-doped crystals stand out as one of the most promising solid-state candidates for long-lived photonic quantum memories, owing to their exceptionally…
arXiv QuantumRead article →Quantum Research · 2026-11-04
Motional Decoherence of the internal state of an atom by vacuum and thermal fluctuations of a quantum field: Necessity of a fully relativistic treatment
arXiv:2611.04512v1 Announce Type: new Abstract: We consider a massive object, such as a neutral atom or an Unruh-DeWitt detector, moving at constant speed in a quantum field and investigate how motion affects the quantum coherence of its internal degrees of freedom, manifesting as quantum dispersion in the absence of a quantum field, and decoherence in its presence.
arXiv QuantumRead article →Quantum Research · 2026-11-04
Broken-Symmetry Reference States for Sample-Based Quantum Diagonalization with Near-DMRG Accuracy
arXiv:2611.04496v1 Announce Type: new Abstract: Sample-based quantum diagonalization (SQD) accuracy remains limited for strongly correlated systems like iron-sulfur clusters. This accuracy heavily depends on the mean-field reference state, which determines the sampling ansatz and configuration-recovery target.
arXiv QuantumRead article →Quantum Research · 2026-11-04
Hybrid Quantum--Classical Pauli-Correlator Architecture for Image Reconstruction
arXiv:2611.04442v1 Announce Type: new Abstract: We introduce the Pauli-Correlator Autoencoder (PCAE), a hybrid quantum--classical architecture for image reconstruction. PCAE splits an image into patches and compresses each patch as a matrix product state (MPS).
arXiv QuantumRead article →Quantum Research · 2026-11-04
Universal Free-Electron-Sideband Control
arXiv:2611.04432v1 Announce Type: new Abstract: Advances in free-electron quantum optics are establishing free electrons as a versatile quantum resource. Photon-induced near-field electron microscopy (PINEM) interactions and free drift provide elementary operations for shaping the longitudinal electron wavefunction, yet their full control capabilities remain unexplored.
arXiv QuantumRead article →Quantum Research · 2026-11-04
Reducing the arithmetic cost of quantum derivative pricing with language-model circuit design
arXiv:2611.04431v1 Announce Type: new Abstract: Quantum amplitude estimation can estimate expected discounted payoffs with quadratically fewer oracle calls than Monte Carlo, but each call requires coherent computation. We use language-model-assisted circuit design to reduce reversible payoff arithmetic for a three-asset worst-of autocallable and a target accrual redemption forward (TARF).
arXiv QuantumRead article →Quantum Research · 2026-11-04
On the Hardness of Approximate Quantum Circuit Membership and Optimization
arXiv:2611.04381v1 Announce Type: new Abstract: Quantum circuit optimization is an indispensable component of the quantum software stack, used to reduce noise, maximize performance, alleviate costs of quantum error correction, or target specific hardware.
arXiv QuantumRead article →Quantum Research · 2026-11-04
A Conditional Quantum Kac-Bernstein Theorem
arXiv:2611.04363v1 Announce Type: new Abstract: We establish a conditional quantum Kac-Bernstein theorem for mixing of two independent, finite-mode bosonic inputs with quantum memories. We characterize exactly when the outputs are conditionally independent given both memories.
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