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Categories: Physics: Optics, Physics: Quantum Computing

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Chemistry: Biochemistry Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: Optics
Published

Peering into nanofluidic mysteries one photon at a time      (via sciencedaily.com)     Original source 

Researchers have revealed an innovative approach to track individual molecule dynamics within nanofluidic structures, illuminating their response to molecules in ways never before possible.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: Optics
Published

Growing triple-decker hybrid crystals for lasers      (via sciencedaily.com) 

By controlling the arrangement of multiple inorganic and organic layers within crystals using a novel technique, researchers have shown they can control the energy levels of electrons and holes (positive charge carriers) within a class of materials called perovskites. This tuning influences the materials' optoelectronic properties and their ability to emit light of specific energies, demonstrated by their ability to function as a source of lasers.

Engineering: Nanotechnology Physics: Acoustics and Ultrasound Physics: Optics
Published

Researchers develop ultra-sensitive photoacoustic microscopy for wide biomedical application potential      (via sciencedaily.com) 

Optical-resolution photoacoustic microscopy is an up-and-coming biomedical imaging technique for studying a broad range of diseases, such as cancer, diabetes and stroke. But its insufficient sensitivity has been a longstanding obstacle for its wider application. Recently, a research team developed a multi-spectral, super-low-dose photoacoustic microscopy system with a significant improvement in the system sensitivity limit, enabling new biomedical applications and clinical translation in the future.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Taking photoclick chemistry to the next level      (via sciencedaily.com) 

Researchers have been able to substantially improve photoclick chemistry. They were able to boost the reactivity of the photoclick compound in the popular PQ-ERA reaction through strategic molecular substitution. They now report a superb photoreaction quantum yield, high reaction rates and notable oxygen tolerance.

Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

A simpler way to connect quantum computers      (via sciencedaily.com) 

Researchers have developed a new approach to building quantum repeaters, devices that can link quantum computers over long distances. The new system transmits low-loss signals over optical fiber using light in the telecom band, a longstanding goal in the march toward robust quantum communication networks.

Physics: Optics
Published

Vision for future micro-optical technology based on metamaterials      (via sciencedaily.com) 

Historically, metasurface research has concentrated on the full manipulation of light's characteristics, resulting in a diverse array of optical devices such as metalenses, metaholograms, and beam diffraction devices. Nevertheless, recent studies have shifted their focus toward integrating metasurfaces with other optical components.

Computer Science: Quantum Computers Offbeat: Computers and Math Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Paving the way for advanced quantum sensors      (via sciencedaily.com) 

Quantum physics has allowed for the creation of sensors far surpassing the precision of classical devices. Now, several new studies show that the precision of these quantum sensors can be significantly improved using entanglement produced by finite-range interactions. Researchers were able to demonstrate this enhancement using entangled ion-chains with up to 51 particles.

Physics: General Physics: Optics
Published

Brighter comb lasers on a chip mean new applications      (via sciencedaily.com) 

Researchers have shown that dissipative Kerr solitons (DKSs) can be used to create chip-based optical frequency combs with enough output power for use in optical atomic clocks and other practical applications. The advance could lead to chip-based instruments that can make precision measurements that were previously possible only in a few specialized laboratories.

Chemistry: Thermodynamics Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Hotter quantum systems can cool faster than initially colder equivalents      (via sciencedaily.com) 

The Mpemba effect is originally referred to the non-monotonic initial temperature dependence of the freezing start time, but it has been observed in various systems -- including colloids -- and has also become known as a mysterious relaxation phenomenon that depends on initial conditions. However, very few have previously investigated the effect in quantum systems. Now, the temperature quantum Mpemba effect can be realized over a wide range of initial conditions.

Engineering: Graphene Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Graphene: Perfection is futile      (via sciencedaily.com) 

It has long been known that graphene has excellent electronic properties. However, it was unclear until now how stable these properties are. Are they destroyed by disturbances and additional effects, which are unavoidable in practice, or do they remain intact? Scientists have now succeeded in developing a comprehensive computer model of realistic graphene structures. It turned out that the desired effects are very stable. Even graphene pieces that are not quite perfect can be used well for technological applications.

Engineering: Graphene Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Golden rules for building atomic blocks      (via sciencedaily.com) 

Physicists have developed a technique to precisely control the alignment of supermoiré lattices by using a set of golden rules, paving the way for the advancement of next generation moiré quantum matter.

Chemistry: Inorganic Chemistry Computer Science: General Computer Science: Quantum Computers Mathematics: General Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Quantum computer unveils atomic dynamics of light-sensitive molecules      (via sciencedaily.com) 

Researchers have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts limitations on the paths molecules can take to change between different configurations. The observation method makes use of a quantum simulator, developed from research in quantum computing, and offers an example of how advances in quantum computing are being used to investigate fundamental science.

Biology: Zoology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Which radio waves disrupt the magnetic sense in migratory birds?      (via sciencedaily.com) 

Many songbirds use the earth's magnetic field as a guide during their migrations, but radiowaves interfere with this ability. A new study has found an upper bound for the frequency that disrupts the magnetic compass.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Scientists use quantum device to slow down simulated chemical reaction 100 billion times      (via sciencedaily.com) 

Using a trapped-ion quantum computer, the research team witnessed the interference pattern of a single atom caused by a 'conical intersection'. Conical intersections are known throughout chemistry and are vital to rapid photo-chemical processes such as light harvesting in human vision or photosynthesis.

Biology: Biotechnology Biology: Developmental Biology: Microbiology Chemistry: Organic Chemistry Physics: Optics
Published

Scientists invent new way to sort cells by type using light      (via sciencedaily.com) 

Researchers have developed and demonstrated a new method for high-throughput single-cell sorting that uses stimulated Raman spectroscopy rather than the traditional approach of fluorescence-activated cell sorting. The new approach could offer a label-free, nondestructive way to sort cells for a variety of applications, including microbiology, cancer detection and cell therapy.

Computer Science: Quantum Computers Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

New quantum device generates single photons and encodes information      (via sciencedaily.com) 

A new approach to quantum light emitters generates a stream of circularly polarized single photons, or particles of light, that may be useful for a range of quantum information and communication applications. A team stacked two different, atomically thin materials to realize this chiral quantum light source.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: Optics
Published

Light regulates structural conversion of chiral molecules      (via sciencedaily.com) 

A team of chemists have developed a novel concept in which a mixture of molecules that behave like mirror images is converted to a single form. To this end, they use light as external energy source. The conversion is relevant e.g. for the preparation of drugs.

Computer Science: Quantum Computers Computer Science: Virtual Reality (VR) Offbeat: Computers and Math Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Do measurements produce the reality they show us?      (via sciencedaily.com) 

The measurement values determined in sufficiently precise measurements of physical systems will vary based on the relation between the past and the future of a system determined by its interactions with the meter. This finding may explain why quantum experiments often produce paradoxical results that can contradict our common-sense idea of physical reality.