| 虚拟 | xū nǐ | to imagine / to make up / fictitious / theoretical / hypothetical / (computing) to emulate / (computing) virtual |   |
| 爱因斯坦 | Aì yīn sī tǎn | Albert Einstein (1879-1955), German-born theoretical physicist | |
| 理论基础 | lǐ lùn jī chǔ | theoretical foundation | |
| 纸上谈兵 | zhǐ shàng tán bīng | lit. military tactics on paper (idiom) / fig. theoretical discussion that is worse than useless in practice / armchair strategist / idle theorizing / cf Zhao Kuo 趙括|赵括[Zhao4 Kuo4] leading an army of 400,000 to total annihilation at battle of Changping 長平之戰|长平之战[Chang2 ping2 zhi1 Zhan4] in 260 BC | |
| 学理 | xué lǐ | scientific principle / theoretical standpoint | |
| 霍金 | Huò jīn | Hawkins or Hawking / Stephen Hawking (1942-2018), English theoretical physicist | |
| 理论贡献 | lǐ lùn gòng xiàn | theoretical contribution | |
| 希格斯 | Xī gé sī | Higgs (name) / Peter Higgs (1929-), British theoretical physicist, one proposer of the Higgs mechanism or Higgs boson to explain the mass of elementary particles | |
| 弦论 | xián lùn | string theory (in theoretical physics) | |
| 汤川 | Tāng chuān | Yukawa (name) / YUKAWA Hideki (1907-1988), Japanese theoretical physicist and Nobel laureate | |
| 汤川·秀树 | | YUKAWA Hideki (1907-1988), Japanese theoretical physicist and Nobel laureate | |
| 汤川秀树 | Tāng chuān Xiù shù | YUKAWA Hideki (1907-1988), Japanese theoretical physicist and Nobel laureate | |
| 理论概率分布 | | theoretical probability distribution | |
| 国际理论物理中心 | | Abdus Salam International Centre for Theoretical Physics / International Centre for Theoretical Physics | |
| 正常重力 | | normal gravity / theoretical gravity | |
| 标准重力 | | normal gravity / theoretical gravity | |
| 理论重力 | | normal gravity / theoretical gravity | |
| 汤川・秀树 | Tāng chuān · Xiù shù | YUKAWA Hideki (1907-1988), Japanese theoretical physicist and Nobel laureate | |
| 杨振宁 | Yáng Zhèn nìng | Chen-Ning Franklin Yang (1922-), theoretical physicist, co-developer of Yang-Mills gauge theory, 1957 Nobel laureate | |
