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解决最大瓶颈,IBM要在2029年打造“最强量子计算机”?
Huan Qiu Shi Bao· 2025-06-11 22:33
Core Insights - IBM scientists claim to have solved the major bottleneck in quantum computing and plan to launch the world's first large-scale quantum computer by 2029, which will be 20,000 times more powerful than any existing quantum computer [1][2]. Quantum Error Correction - The primary technical barrier to the widespread adoption of quantum computers is "quantum error correction," as quantum bits (qubits) are highly sensitive to environmental interactions, leading to errors due to a phenomenon known as "decoherence" [1]. - IBM's new quantum computer, named "Starling," will utilize 200 logical qubits composed of approximately 10,000 physical qubits, while a subsequent model, "Blue Jay," is planned for 2033 with 2,000 logical qubits [2]. - IBM has developed a novel quantum error correction method that allows quantum hardware to surpass previous limitations, using more efficient LDPC error correction codes to reduce the number of physical qubits required for reliable logical qubits [2]. Future of Quantum Computing - Currently, quantum computers can only utilize a few hundred qubits, limiting their application to custom problems that test their potential against traditional binary computers [3]. - IBM envisions future quantum computers capable of using hundreds of millions of qubits to ensure widespread adoption, necessitating the development of new algorithms and programs to fully leverage their high performance [3].
IBM,要造最强量子计算机
半导体行业观察· 2025-06-11 01:39
Core Viewpoint - IBM plans to build the world's first large-scale fault-tolerant quantum computer, named IBM Quantum Starling, by the end of this century, which will have a computing power 20,000 times greater than current quantum computers [2]. Group 1: Quantum Computing Developments - Quantum computers store information as quantum bits (qubits), which can exist in both "0" and "1" states simultaneously, allowing for more powerful computations compared to classical computers [3]. - A major challenge in quantum computing is the susceptibility of qubits to errors caused by "noise," which are small environmental interferences that can disrupt their quantum state [3]. Group 2: IBM's Roadmap and Collaborations - IBM's confidence in achieving a fault-tolerant quantum computer by 2029 is based on advancements in error reduction methods, specifically the "quantum low-density parity-check" (qLDPC) code, and real-time error correction techniques using classical computing [4]. - IBM is collaborating with the quantum startup SEEQC as part of a U.S. Defense Advanced Research Projects Agency (DARPA) quantum benchmarking program to assess the scalability of quantum operations [4]. Group 3: Market Implications and Industry Reactions - IBM aims to stimulate developer interest in creating quantum algorithms, which are crucial for realizing returns on investment in quantum computing [5]. - Analysts express skepticism about how IBM's breakthroughs will translate into tangible commercial value, noting that the transformative potential of fault-tolerant quantum computers remains speculative [5]. - The comprehensive nature of IBM's plans for building a fault-tolerant quantum computer is noteworthy and should alert businesses and the tech community to the rapid advancements in quantum computing [6].
亚马逊,也要搞量子芯片
半导体芯闻· 2025-03-04 10:59
Core Viewpoint - The article discusses the latest advancements in quantum computing, highlighting Amazon Web Services (AWS) and its new Ocelot quantum computing chip, which represents a significant step towards building fault-tolerant quantum computers capable of solving complex problems that traditional computers cannot address [1]. Group 1: Ocelot Chip Development - The Ocelot chip was developed by the AWS Quantum Computing Center at Caltech, utilizing a novel quantum error correction method [2]. - The AWS Quantum Computing Center was established in 2019 with the ambitious goal of creating a fault-tolerant quantum computer capable of large-scale precise computations [4]. - The collaboration involves Amazon, Caltech, and other leading academic institutions to accelerate the development of quantum technology and applications [4]. Group 2: Challenges in Quantum Computing - One of the major challenges in quantum computing is maintaining the stability and fidelity of quantum bits (qubits) while increasing their quantity [6]. - Quantum error correction is crucial for building reliable quantum computers, but current methods require a large number of qubits, making them cost-prohibitive [6]. Group 3: Innovations in Ocelot Chip - AWS researchers have integrated error correction directly into the architecture of the Ocelot chip, prioritizing quantum error correction from the outset [8]. - The Ocelot chip features "cat qubits," which can suppress certain types of errors, potentially reducing the resources needed for quantum error correction by up to 90% compared to current methods [9]. - The resources required to scale Ocelot into a mature quantum computer capable of transformative societal impact are estimated to be only one-tenth of those needed for standard quantum error correction methods [9]. Group 4: Technical Specifications - The Ocelot chip is a prototype consisting of two integrated silicon microchips, each approximately 1 cm² in area, connected electrically [12]. - It comprises 14 core components: 5 data qubits (cat qubits), 5 "buffer circuits" for stabilizing cat qubits, and 4 additional qubits for error detection [12]. Group 5: Competitive Landscape - The release of the Ocelot chip coincides with significant activities in the quantum computing field, including Google's Willow chip, which has 105 qubits and demonstrates breakthroughs in quantum error correction [12]. - Microsoft's Majorana 1 chip, utilizing a topological qubit architecture, aims to enhance stability and scalability, addressing key challenges in the field [12]. - These advancements highlight the intense competition among major players in quantum computing, with different approaches to achieving quantum supremacy [13].
亚马逊入局量子芯片
半导体行业观察· 2025-02-28 03:08
Core Viewpoint - Amazon Web Services (AWS) has launched its first quantum computing chip named Ocelot, which represents a significant advancement in achieving error correction capabilities essential for scaling quantum technology [1][2]. Summary by Sections Quantum Chip Development - Ocelot is designed to reduce the cost of achieving quantum error correction by up to 90% compared to existing methods [2]. - The chip utilizes a specialized architecture based on "cat qubits," which were proposed by AWS researchers in 2021 and recently published in a paper in Nature [2]. Technical Specifications - Ocelot consists of two integrated silicon microchips, each approximately 1 square centimeter, containing quantum circuit elements made from superconducting materials [9]. - The chip features 14 core components, including 5 data qubits (cat qubits), 5 buffer circuits for stabilizing data qubits, and 4 additional qubits for error detection [9]. Industry Context - The announcement of Ocelot follows Microsoft's release of its quantum chip Majorana 1, highlighting a competitive landscape among major tech companies in quantum computing [3][7]. - Quantum computing is expected to address complex real-world applications that traditional systems struggle with, such as accelerating drug discovery and improving investment strategies [4]. Future Directions - AWS plans to continue research and development on Ocelot, with the goal of scaling logical qubits while improving performance to achieve a logical error rate lower by nine orders of magnitude than current standards [15][16]. - The company acknowledges that Ocelot is still a research device and emphasizes the need for ongoing innovation and collaboration with academia [16].