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Optics & Photonics Nov 20, 2023

Boomerang-like beams of light: Research makes progress toward observing quantum backflow in two dimensions

Researchers at the University of Warsaw's Faculty of Âé¶¹ÒùÔºics have superposed two light beams twisted in the clockwise direction to create anti-clockwise twists in the dark regions of the resultant superposition. The results ...

Optics & Photonics Nov 8, 2023

Research overcomes major obstacle for quantum sensor development

Researchers from the Niels Bohr Institute (NBI) have removed a key obstacle for development of extremely sensitive monitoring devices based on quantum technology.

Astronomy Oct 23, 2023

LIGO surpasses the quantum limit

In 2015, the Laser Interferometer Gravitational-Wave Observatory (LIGO), made history when it made the first direct detection of gravitational waves—ripples in space and time—produced by a pair of colliding black holes.

Optics & Photonics Oct 12, 2023

Uncovering the secrets of spin-orbit optical Rabi oscillations

The Rabi oscillation has been proven to be one of the cornerstones of quantum mechanics, triggering substantial investigations in different disciplines including atomic and molecular physics, acoustics, and optics. Various ...

Quantum Âé¶¹ÒùÔºics Oct 11, 2023

Exploring parameter shift for quantum Fisher information

In a recent publication in EPJ Quantum Technology, Le Bin Ho from Tohoku University's Frontier Institute for Interdisciplinary Sciences has developed a technique called time-dependent stochastic parameter shift in the realm ...

Quantum Âé¶¹ÒùÔºics Oct 6, 2023

Scientists develop a semi-device independent, randomness-free test for quantum correlation

In a new Âé¶¹ÒùÔºical Review Letters study, scientists have successfully presented a proof of concept to demonstrate a randomness-free test for quantum correlations and non-projective measurements, offering a groundbreaking alternative ...

Optics & Photonics Sep 7, 2023

Unlocking quantum potential: Harnessing high-dimensional quantum states with QDs and OAM

Quantum technology's future rests on the exploitation of fascinating quantum mechanics concepts—such as high-dimensional quantum states. Think of these states as basic ingredients of quantum information science and quantum ...

Optics & Photonics Sep 6, 2023

Scientists demonstrate new, improved way to make infrared light, with quantum dots

Scientists with the University of Chicago have demonstrated a way to create infrared light using colloidal quantum dots. The researchers said the method demonstrates great promise; the dots are already as efficient as existing ...

Quantum Âé¶¹ÒùÔºics Sep 6, 2023

Study proves the difficulty of simulating random quantum circuits for classical computers

Quantum computers, technologies that perform computations leveraging quantum mechanical phenomena, could eventually outperform classical computers on many complex computational and optimization problems. While some quantum ...

Quantum Âé¶¹ÒùÔºics Sep 5, 2023

Deriving the fundamental limit of heat current in quantum mechanical many-particle systems

Researchers from the University of Tsukuba have mathematically derived the fundamental limit of heat current flowing into a quantum system comprising numerous quantum mechanical particles in relation to the particle count.

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