MD今日宣布在量子领域取得重大进展。想起土鳖，难道今年 ...

http://www.engadget.com/2012/02/28/ibm-quantum-computing/



IBM: We're on the cusp of the Quantum Computing revolution  我们正处在量子电脑的突破点上。

Technology's holy grail is the development of a "perfect" Quantum Computer. Traditional computers recognize information as bits: binary information representing "On" or "Off" states. A quantum computer uses qubits: operating in superposition, a qubit exists in all states simultaneously -- not just "On" or "Off," but every possible state in-between. It would theoretically be able to instantly access every piece of information at the same time, meaning that a 250 qubit computer would contain more data than there are particles in the universe. IBM thinks it's closer than ever to realizing this dream and if you want to know more, we have the full details after the break.
IBM Superconducting QBit Setup

The system has serious ramifications in the fields of science, technology, medicine and security -- the latter because it can try every conceivable password to access a system within a second. However, for now, this computer remains science fiction rather than science fact. In the same way that you understand the Copenhagen interpretation of Quantum Physics, qubits are negatively affected by both observation and interaction -- the vulnerability of these materials to interference from heat, radiation and defective materials means you can't trust the answers it provides, called quantum decoherence. Being able to produce a qubit of sufficient "integrity" that you can trust the results is what has eluded scientists for decades.

In a few short hours, however, IBM is going to present three brand-new records to the American Physical Society that could change all of that. Using its R&D know-how, and some of the world's most powerful freezers, it's developed methods of easily building, maintaining and even increasing the integrity of a qubit to the point that it's now very close to the minimum standard required by the research community. David DiVincenzo, professor at the Institute of Quantum Information thinks that the company is "nearly at the tipping point."

Taking technology developed at Yale, its three dimensional superconducting qubit was able to extend the duration of each qubit's quantum state to up to 100 microseconds: a short time for you and me, but a lifetime for a computer that theoretically knows everything. The papers, entitled "Superconducting qubit in waveguide cavity with coherence time approaching 0.1ms" and "Complete universal quantum gate set approaching fault-tolerant thresholds with superconducting qubits" will be made available after the presentation later this morning and it's hoped that scientists can now concentrate upon error correction schemes to further enhance the technology. Part of the revelation is that IBM built the qubits using traditional commercial chip fabrication technology: meaning that if the final ceiling is breached, it would be possible to mass-produce the technology very rapidly at scale.

要点翻译：
1, 量子电脑在安全领域有重大意义，比如说能在1秒钟内试验一个密码系统的所有可能的解。
2, 由于热量，辐射和材料的不完美性，要制造出能够进行一定量子纠缠的威远材料，在过去几十年中都非常困难。
3, 今天，IBM将向美国物理协会说明3个全新的具有巨大改变作用的3个试验记录。
4, IBM借助技术优势，包括低温技术，用相对简单的手段将量子纠缠做到离标准非常接近的程度。某教授语“几乎就是那个转折点了”
5, 其量子纠缠状态能保持几乎100毫秒，几乎满足了超级量子电脑的需要。有关论文将会很快发布。
6, 科学家将很快能够把精力集中到容错算法和改进上面来。
7, IBM这次使用传统的芯片制造技术来制造这次量子试验的材料，也就是说将来能够很容易做到下饺子。

翻译得不好，意思意思看看。

感觉今年国际上量子科技都会有比较大的突破，土鳖前不久也发文说明了。

本周刚刚看了关于物理量子的书，哎，要不要去信上帝呢？呵呵。

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊

说个题外话，这个新闻是在MD的数码科技网站engadget上看到的，类似于国内的pchome或者驱动之家。同页面还有各种类型几十条新闻，都是新手机啊，新平板，新软件服务，新游戏什么的。这条量子新闻有400多条评论，其他所有新闻均只有几条或者几十条评论。 看来这个貌似没落中的国家的年轻人还是崇尚科学的。



http://www.engadget.com/2012/02/28/ibm-quantum-computing/



IBM: We're on the cusp of the Quantum Computing revolution  我们正处在量子电脑的突破点上。

Technology's holy grail is the development of a "perfect" Quantum Computer. Traditional computers recognize information as bits: binary information representing "On" or "Off" states. A quantum computer uses qubits: operating in superposition, a qubit exists in all states simultaneously -- not just "On" or "Off," but every possible state in-between. It would theoretically be able to instantly access every piece of information at the same time, meaning that a 250 qubit computer would contain more data than there are particles in the universe. IBM thinks it's closer than ever to realizing this dream and if you want to know more, we have the full details after the break.
IBM Superconducting QBit Setup

The system has serious ramifications in the fields of science, technology, medicine and security -- the latter because it can try every conceivable password to access a system within a second. However, for now, this computer remains science fiction rather than science fact. In the same way that you understand the Copenhagen interpretation of Quantum Physics, qubits are negatively affected by both observation and interaction -- the vulnerability of these materials to interference from heat, radiation and defective materials means you can't trust the answers it provides, called quantum decoherence. Being able to produce a qubit of sufficient "integrity" that you can trust the results is what has eluded scientists for decades.

In a few short hours, however, IBM is going to present three brand-new records to the American Physical Society that could change all of that. Using its R&D know-how, and some of the world's most powerful freezers, it's developed methods of easily building, maintaining and even increasing the integrity of a qubit to the point that it's now very close to the minimum standard required by the research community. David DiVincenzo, professor at the Institute of Quantum Information thinks that the company is "nearly at the tipping point."

Taking technology developed at Yale, its three dimensional superconducting qubit was able to extend the duration of each qubit's quantum state to up to 100 microseconds: a short time for you and me, but a lifetime for a computer that theoretically knows everything. The papers, entitled "Superconducting qubit in waveguide cavity with coherence time approaching 0.1ms" and "Complete universal quantum gate set approaching fault-tolerant thresholds with superconducting qubits" will be made available after the presentation later this morning and it's hoped that scientists can now concentrate upon error correction schemes to further enhance the technology. Part of the revelation is that IBM built the qubits using traditional commercial chip fabrication technology: meaning that if the final ceiling is breached, it would be possible to mass-produce the technology very rapidly at scale.

要点翻译：
1, 量子电脑在安全领域有重大意义，比如说能在1秒钟内试验一个密码系统的所有可能的解。
2, 由于热量，辐射和材料的不完美性，要制造出能够进行一定量子纠缠的威远材料，在过去几十年中都非常困难。
3, 今天，IBM将向美国物理协会说明3个全新的具有巨大改变作用的3个试验记录。
4, IBM借助技术优势，包括低温技术，用相对简单的手段将量子纠缠做到离标准非常接近的程度。某教授语“几乎就是那个转折点了”
5, 其量子纠缠状态能保持几乎100毫秒，几乎满足了超级量子电脑的需要。有关论文将会很快发布。
6, 科学家将很快能够把精力集中到容错算法和改进上面来。
7, IBM这次使用传统的芯片制造技术来制造这次量子试验的材料，也就是说将来能够很容易做到下饺子。

翻译得不好，意思意思看看。

感觉今年国际上量子科技都会有比较大的突破，土鳖前不久也发文说明了。

本周刚刚看了关于物理量子的书，哎，要不要去信上帝呢？呵呵。

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊

说个题外话，这个新闻是在MD的数码科技网站engadget上看到的，类似于国内的pchome或者驱动之家。同页面还有各种类型几十条新闻，都是新手机啊，新平板，新软件服务，新游戏什么的。这条量子新闻有400多条评论，其他所有新闻均只有几条或者几十条评论。 看来这个貌似没落中的国家的年轻人还是崇尚科学的。