Quantum Physics - Latest Research and News

Featured Articles

Quantum Communication Across a 250-kilometre Optical-fibre Network

• Key Concept: Exploits light property called coherence for long-distance quantum communication.
• Application: Demonstrates feasibility of large-scale quantum networks in existing telecom infrastructures.
• Reference: Nature, News & Views, 23 Apr 2025.

Resourceful Dissipation

• Focus: Controlled dissipation in ultracold one-dimensional gases.
• Outcome: Observation of anomalous dynamics to extract equilibrium properties.

Spinons in Nanographene Spin Chains

• Content: Reports on excitation spectra of spin-1/2 Heisenberg chains in carbon nanostructures.
• Researchers: Dimas G. de Oteyza, Bruno de la Torre.

Latest Research and Reviews

Exchange Anisotropies in Microwave-Driven Singlet-Triplet Qubits

• Field: Hole spin qubits.
• Benefit: Large spin-orbit interaction for efficient manipulation.
• Challenge: Qubit variability.
• Study Outcome: Reveals two distinct operating regimes due to different quantization axes.
• Authors: Jaime Saez-Mollejo, Daniel Jirovec, Georgios Katsaros.

Long-Distance Coherent Quantum Communications in Deployed Telecom Networks

• Protocol: Twin-field quantum key distribution based on optical coherence.
• Achievement: Alignment with existing telecom infrastructure over 254-kilometre commercial network.
• Authors: Mirko Pittaluga, Yuen San Lo, Andrew J. Shields.

Efficient Learning for Linear Properties of Bounded-Gate Quantum Circuits

• Investigation: Learnability of many-qubit bounded-gate quantum circuits.
• Finding: Proposes a learning algorithm for efficient resource solutions in quantum applications.
• Contributors: Yuxuan Du, Min-Hsiu Hsieh, Dacheng Tao.

News and Comment

Quantum Communication Across a 250-kilometre Optical-fibre Network

• Significance: Reinforces the potential of coherence-based quantum communication.
• Source: Nature, News & Views, 23 Apr 2025.

How a Thirty-Year-Old Quantum Tale of Two Photons Became Ghost Imaging

• Historical Context: Reflects on initial challenges of Ghost Imaging experiment.
• Authors: Andrew Forbes, Fazilah Nothlawala.

How to Define Quantum Technology

• Discussion: Calls for a clear definition of 'quantum' in technology for informed investment.
• Authors: Christophe Couteau, Sneana Lazi.

Resourceful Dissipation

• Aspect: Controlled dissipation's role in understanding ultracold gases dynamics.
• Contributor: Yann Kiefer.