Scientists in Singapore develop a single-atom device that can perform both energy conversion and cooling tasks, showcasing the potential of quantum mechanics in miniaturizing machines. The device uses lasers to manipulate an atom's vibrations, creating a battery-like effect that stores energy.
The National University of Singapore's quantum satellite SpooQy-1 carries a quote from The Golden Record 2.0, a play written for the NUS Arts Festival, to test a quantum light source enabling future secure communication. The satellite, built by CQT and the NUS Centre for the Arts, honours Singapore's diversity and globalised world.
A new approach enables the smooth navigation of photons through complex optical fiber obstacle courses, preserving entanglement and correlation. This breakthrough boosts expectations for quantum key distribution (QKD) technology, which uses signals in particles of light to create encryption keys.
Researchers have created a quantum fridge with just three atoms, demonstrating the role of quantum effects in thermodynamics. The device, using heat to drive cooling without moving parts, achieves temperatures within 40 microKelvin of absolute zero.
Researchers found that quantum models can entirely mitigate the memory overhead required to model data in reverse, outperforming classical models. This discovery has profound implications for our understanding of time and its arrow.
Researchers propose lutetium as a superior element for atomic clocks, offering lower sensitivity to temperature. This could lead to more accurate and stable timekeeping, with potential applications in fundamental physics and global positioning systems.
Researchers propose storing time in a quantum superposition to reduce memory requirements for classical computer simulations. This allows for more efficient modeling of processes like traffic flow and neural firing without sacrificing predictive accuracy.
Researchers have developed a quantum linear system algorithm that enables faster analysis of large data sets, outperforming classical computers. The new algorithm has the potential to revolutionize fields like commodities pricing, social networks, and chemical structures.
A Singapore-Japan research team developed a new scheme to verify quantum computations after they're completed, allowing customers to check results and protect companies from dishonest users. The 'post-hoc verification' method can be done with or without specialized hardware.
A team of researchers has successfully recreated Hofstadter's butterfly using quantum simulators, enabling the simulation of exotic electronic conduction properties. This breakthrough could lead to the development of new materials with unique properties.
Researchers at the National University of Singapore have developed a super-resolution imaging technique that doubles the odds of successful photon interaction with atoms. This innovation has significant implications for quantum computing and metrology, as it enables stronger interactions between photons and atoms.
A new technique allows users to hide both data and program from the quantum computer, even with classical communication. The scheme uses entangled qubits and measurement-based computing to create ambiguity, making it difficult for the computer to determine the true calculation.
Researchers have discovered that all entangled states of two particles have a unique classical fingerprint. This breakthrough enables the certification of quantum computers and encryption devices, ensuring their authenticity. The discovery uses a simple set of measurements to act as an identity check for any two-particle entangled state.
Researchers have discovered that quantum devices can process information more efficiently than classical devices by harnessing quantum theory. This breakthrough could lead to significant advancements in fields such as artificial intelligence and machine learning.
Scientists mapped the probability of Rubidium atoms absorbing photons with rising and decaying shapes. The results show a significant increase in excitation at moments when the photon arrives dimly and ends brightly, indicating that photon shape plays a crucial role in light-matter interactions.
A team of international researchers has developed a scheme to protect groups of quantum particles and enable their coherent transportation. The proposal, based on the ideas of physicist David J. Thouless, utilizes topological pumping to move quantum states along a line of miniature quantum circuits.
Researchers from Singapore and UK test a compact device in space that creates and measures pairs of light particles, a precursor to entangled photons. The technology aims to connect powerful quantum computers globally, enabling secure keys for secret messaging.
Researchers use compression software to reveal quantum correlations in experimental data, detecting evidence of entanglement between particles. The technique shows a value exceeding zero, proving the system has crossed the classical-quantum boundary.
Scientists have found a way to solve complex problems using a quantum computer traveling along 'open timelike curves' without breaking the laws of causality. This breakthrough allows for supercomputational power while maintaining the integrity of quantum principles.
Researchers have achieved the most extreme entanglement between photon pairs, pushing quantum physics to its limit. The result bolsters confidence in schemes for quantum cryptography and computing.
A team of researchers has proved that two features of the quantum world are different manifestations of the same thing. They found that 'wave-particle duality' is simply the quantum 'uncertainty principle' in disguise, reducing two mysteries to one.
Researchers Artur Ekert and Renato Renner propose a way to use quantum properties of particles of light to share secret keys for secure communication. They found that certain correlations can protect us against adversaries with superior technology, even if our choices are not completely predictable.
Researchers have demonstrated a form of quantum cryptography that protects people doing business with others they may not trust. The protocol, known as 1-2 random oblivious transfer (ROT), allows two parties to securely exchange information without revealing their picks, making it ideal for secure identification and online transactions.
Researchers Corsin Pfister and Stephanie Wehner discovered a new principle that rules out discrete theories incompatible with quantum physics. The principle assumes that measuring a system yields no information implies the system has not been disturbed.
Scientists at National University of Singapore successfully developed a secure bidding system using entangled photons. The 'noisy storage' model allows for secure information sharing between two parties without trusting each other.
Researchers propose an inequality that probes the role of signals in quantum predictions, exposing how they challenge Einstein's theory of relativity. The test, feasible in the near future, will measure a single number, potentially revealing faster-than-light communication or infinitely fast influences.
A new study by an international team has identified that quantum discord, a more robust and accessible phenomenon than entanglement, can provide a quantum advantage. Researchers have discovered a direct link between quantum power and quantum discord, which can be tapped with the right quantum tools.
Researchers discovered a new way for quantum computers to simulate stochastic processes, which are used to model phenomena like stock market movements and gas diffusion. This finding suggests that quantum theory might not yet be optimized, leaving room for further exploration of a deeper theory.
Physicists at the National University of Singapore have developed a scheme to simulate neutrino oscillations using three charged ions. This quantum simulation could aid in understanding more complex models of neutrino behavior and potentially inspire simulations of other particles with similar properties.
Researchers have developed quantum cryptography protocols that can counter even a malicious manipulator controlling the setup, offering a measure of genuine randomness in keys. The breakthrough builds on recent twists that give quantum cryptography powerful boost against eavesdroppers.
Researchers found that a quantum know-it-all can answer questions correctly even with incomplete knowledge of the subject as a whole. The study's findings raise new questions about the nature of quantum ignorance and its implications for emerging technologies like quantum cryptography and computation.
Researchers in Singapore and Norway have created a 'perfect eavesdropper' that exploits an overlooked loophole in quantum key distribution (QKD) to obtain a shared secret key. This discovery highlights the importance of identifying imperfections in QKD implementation to ensure its security.
A fundamental link between the uncertainty principle and non-locality has been discovered, revealing a quantitative relationship between the two phenomena. This breakthrough sheds new light on the foundations of quantum mechanics and its ability to allow for 'spooky action at a distance'.