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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.

Quantum Âé¶¹ÒùÔºics Aug 30, 2023

A new protocol to reliably demonstrate quantum computational advantage

Quantum computers, devices that perform computations by exploiting quantum mechanical phenomena, have the potential to outperform classical computers on some tasks and optimization problems. In recent years, research teams ...

Analytical Chemistry Aug 28, 2023

Quantum computer unveils atomic dynamics of light-sensitive molecules

Researchers at Duke University 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 ...

Quantum Âé¶¹ÒùÔºics Aug 28, 2023

Chessboard-like method enables the operation of largest gate-defined quantum dot system

Researchers from Delft established a way to address many quantum dots with only a few control lines using a chessboard-like method. This enabled the operation of the largest gate-defined quantum dot system ever. Their result ...

Quantum Âé¶¹ÒùÔºics Aug 24, 2023

Do measurements produce the reality they show us?

Whenever the precision of a measurement approaches the uncertainty limit defined by quantum mechanics, the outcomes of the measurement depend on the dynamics of the interactions with the meter used to determine a physical ...

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