时间晶体
Search documents
最复杂二维时间晶体成功构建
Ke Ji Ri Bao· 2026-01-29 23:05
Core Insights - Scientists at the Donostia International Physics Center in Spain have successfully constructed the most complex time crystal to date using superconducting quantum computers, providing new pathways for material design [1] - Time crystals are special quantum states that periodically repeat in the time dimension, akin to how atoms are ordered in space within ordinary crystals [1] Group 1 - The research team utilized 144 superconducting qubits arranged in a honeycomb lattice, with each qubit simulating a quantum spin, allowing for programmable control of interaction strengths [1] - The system spontaneously enters a stable periodic oscillation state over time, which is a core feature of time crystals [1] - The team also created a phase diagram of the system, revealing the complete distribution of states under different parameters, which is crucial for understanding complex quantum materials [1] Group 2 - Despite relying on quantum hardware, the research still requires validation through traditional computational methods due to current device noise and errors [2] - The collaboration between classical and quantum methods is seen as a significant step towards future material design, as the complexity of the model exceeds the solving capabilities of traditional computers [2] - The breakthrough in two-dimensional systems is expected to bridge quantum computing and quantum sensing, opening new possibilities for cross-disciplinary applications [2]
【中国新闻网】两院院士评出2025世界十大科技进展:脑机接口、黑洞合并等入选
Zhong Guo Xin Wen Wang· 2026-01-27 02:36
Core Insights - The article highlights significant advancements in technology and science, particularly in brain-computer interfaces, quantum systems, and astronomical discoveries, which have been recognized as major scientific achievements for 2025 [3][4][5][6][7]. Group 1: Brain-Computer Interfaces - A brain-computer interface has enabled a patient with severe speech impairment to communicate expressively, converting brain activity into speech almost in real-time, showcasing the potential for aiding those with communication disorders [4][6]. - The system allows for the expression of intonation and emphasis, enhancing the natural characteristics of speech [4]. Group 2: Quantum Technology - The development of the first integrated "electronic-photonic-quantum" chip system marks a milestone in quantum technology, combining quantum light sources with electronic circuits on a single chip, paving the way for mass production of quantum systems [4]. Group 3: Black Hole Discoveries - The detection of the largest black hole merger to date, with masses of approximately 100 and 140 solar masses merging to form a 225 solar mass black hole, challenges existing models of black hole formation and provides new insights into their growth [5]. Group 4: Neutrino Research - Scientists have identified the highest energy neutrinos to date, with energies 20 times greater than previous detections, suggesting they originate from outside the Milky Way, although their exact source remains unknown [5]. Group 5: Time Crystals - The creation of the first visible "time crystal" represents a breakthrough in material science, allowing for the observation of a state of matter that repeats in time, which could have applications in verifying the authenticity of currency [5]. Group 6: Organ Transplantation - A genetically modified pig kidney has survived for 61 days in a human recipient, setting a record for xenotransplantation and providing insights into overcoming organ rejection [6]. Group 7: Cosmic Observations - A ground-based telescope has successfully detected signals from the universe 13 billion years ago, shedding light on the early universe and aiding in the understanding of cosmic microwave background radiation [6]. Group 8: Cosmic Mapping - The release of the largest cosmic map to date, based on data from the James Webb Space Telescope, includes over 780,000 galaxies and spans 13.5 billion years, challenging existing knowledge of the early universe [6]. Group 9: Brain Mapping - The largest and most detailed brain connectivity map has been created, involving over 150 neuroscientists, which includes more than 200,000 brain cells and over 500 million synaptic connections [7]. Group 10: AI Achievements - DeepMind's advanced AI model, Gemini, has achieved scores equivalent to gold medal levels in the International Mathematical Olympiad, demonstrating significant advancements in artificial intelligence capabilities [7].
【科技日报】两院院士评出2025年中国/世界十大科技进展
Ke Ji Ri Bao· 2026-01-27 02:36
Group 1: China's Top Ten Scientific Advances of 2025 - The "artificial sun" EAST achieved a world record of "one billion degrees for a thousand seconds" [1] - DeepSeek company introduced a new AI technology in China [1] - The construction of a thorium molten salt reactor marks a breakthrough in China's nuclear energy technology [1] - A liver cancer prediction system was featured on the cover of "Nature" magazine, serving a global audience [1] - The "North Brain No. 1" completed its first batch of wireless full-body implants [1] - A novel innovative target and candidate new drug for Parkinson's disease was discovered [1] - The superconducting quantum computing prototype "Zu Chongzhi No. 3" was unveiled [1] - Chinese scientists successfully developed a new hydrogen production technology [1] - Significant breakthroughs were made in the protection technology of black soil in the "Black Soil Granary" campaign [1] - Chinese scientists achieved new advancements in 6G wireless communication [1] Group 2: World's Top Ten Scientific Advances of 2025 - Brain-machine interfaces enabled patients to express emotions through speech and song, translating thoughts into language in real-time [2] - An integrated chip system combining electronics, photonics, and quantum technology was developed [2] - The largest black hole merger event ever detected challenges existing black hole formation models [2] - Scientists discovered the highest energy neutrino to date, which is 20 times more energetic than previous detections [2] - The first visible "time crystal" was created [2] - Transgenic pig organ transplants set a record for survival time [2] - Ground-based telescopes detected signals from the universe dating back 13 billion years [2] - The largest cosmic map to date was published [2] - The most detailed brain "map" was created, describing numerous neurons and their activities [2] - "Deep Thinking" announced that its artificial intelligence test scores reached the level of an international mathematics Olympiad gold medal [2]
时间晶体能让时间像冰一样结晶?命运到底能不能改变?
Hu Xiu· 2025-10-21 07:03
Core Insights - The concept of time crystals suggests that time can crystallize, leading to a new understanding of time and its implications for reality [1] Group 1 - Time crystals represent a theoretical state where time is not linear but can loop back on itself, challenging traditional perceptions of time [1] - The idea raises questions about fate and the potential to break free from the constraints of time, suggesting a philosophical exploration of existence [1]
时间晶体首次与外部系统稳定耦合
Ke Ji Ri Bao· 2025-10-20 23:43
Core Insights - The research team from Aalto University in Finland has successfully coupled time crystals with external systems, creating a stable optomechanical system, which opens new avenues for ultra-precise sensors and quantum computer memory units [1][2]. Group 1: Time Crystals - Time crystals are defined by their ability to maintain a lowest energy state that allows for continuous motion without external energy input, a concept proposed by Nobel laureate Frank Wilczek in 2012 [1]. - The existence of time crystals was experimentally verified in 2016, but previous attempts to couple them with external systems were unsuccessful due to the disruption of their perpetual motion characteristics [1]. Group 2: Experimental Methodology - The team utilized radio waves to inject magnetic quasiparticles into superfluid helium-3 at near absolute zero temperatures, leading to the spontaneous formation of time crystals with unprecedented stability [2]. - The time crystals maintained their motion for up to 108 cycles, approximately several minutes, before gradually becoming unobservable [2]. Group 3: Implications for Quantum Technology - The interaction between time crystals and adjacent mechanical oscillators is determined by the frequency and amplitude of the oscillators, resembling the widely used optomechanical effects in physics [2]. - The research indicates that time crystals could serve as a core memory unit for quantum computers, enhancing stability and computational efficiency, as well as acting as a frequency reference for high-sensitivity measurement instruments [2].