We examine the motion of test equatorial string loops in a self-similar Vaidya-Papapetrou spacetime. We obtain different qualitative behaviors for values of the power parameter λ above and below the ...

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If you'd asked us a few years ago if we’d heard of Loop Earplugs, we wouldn’t have known what you meant. After all, a device which lets you control the loudness of your surroundings seems too good to ...

In October 1984 I arrived at Oxford University, trailing a large steamer trunk containing a couple of changes of clothing and about five dozen textbooks. I had a freshly minted bachelor’s degree in ...

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本文从原理到实践系统地分享了如何高效使用AI编程工具。涵盖其底层机制（如Token计算、工具调用、Codebase索引与Merkle ...

We discuss the wormhole effective interactions in string theory, thought of as a sum over two-dimensional field theories on different world sheets. The effective interactions are calculated in the ...