From da283e28ccb3df9f3b8ad2e173c7bb986352a53f Mon Sep 17 00:00:00 2001 From: Zheyuan Wu <60459821+Trance-0@users.noreply.github.com> Date: Thu, 10 Jul 2025 14:55:56 -0500 Subject: [PATCH] change var --- content/Math401/Math401_T6.md | 22 ++++++++++++++++++---- content/Math401/_meta.js | 2 ++ favicon.ico | Bin 0 -> 10462 bytes next.config.mjs | 8 +------- package.json | 6 +++--- 5 files changed, 24 insertions(+), 14 deletions(-) create mode 100644 favicon.ico diff --git a/content/Math401/Math401_T6.md b/content/Math401/Math401_T6.md index 4059db0..13cde28 100644 --- a/content/Math401/Math401_T6.md +++ b/content/Math401/Math401_T6.md @@ -49,12 +49,26 @@ A state $|\psi\rangle$ is entangled if it cannot be expressed as a product state Example: the Bell state $|\psi^+\rangle=\frac{1}{\sqrt{2}}(|00\rangle+|11\rangle)$ is entangled. Assume it can be written as $|\psi\rangle=|\psi_1\rangle\otimes|\psi_2\rangle$ where $|\psi_1\rangle=a|0\rangle+b|1\rangle$ and $|\psi_2\rangle=c|0\rangle+d|1\rangle$. Then: -$$|\psi\rangle=a|00\rangle+b|01\rangle+c|10\rangle+d|11\rangle$$ + +$$ +|\psi\rangle=a|00\rangle+b|01\rangle+c|10\rangle+d|11\rangle +$$ + Setting this equal to $|\psi^+\rangle=\frac{1}{\sqrt{2}}(|00\rangle+|11\rangle)$ gives: -$$ac|00\rangle+ad|01\rangle+bc|10\rangle+bd|11\rangle=\frac{1}{\sqrt{2}}(|00\rangle+|11\rangle)$$ + +$$ +ac|00\rangle+ad|01\rangle+bc|10\rangle+bd|11\rangle=\frac{1}{\sqrt{2}}(|00\rangle+|11\rangle) +$$ + This requires: -$$ac=bd=\frac{1}{2}$$ -$$ad=bc=0$$ + +$$ +ac=bd=\frac{1}{2} +$$ + +$$ +ad=bc=0 +$$ This is a contradiction, so $|\psi^+\rangle$ is entangled. diff --git a/content/Math401/_meta.js b/content/Math401/_meta.js index c64f3b0..0df50d8 100644 --- a/content/Math401/_meta.js +++ b/content/Math401/_meta.js @@ -21,4 +21,6 @@ export default { }, Math401_P1: "Math 401, Paper 1: Concentration of measure effects in quantum information (Patrick Hayden)", Math401_P1_1: "Math 401, Paper 1, Side note 1: Quantum information theory and Measure concentration", + Math401_P1_2: "Math 401, Paper 1, Side note 2: Page's lemma", + Math401_P1_3: "Math 401, Paper 1, Side note 3: Levy's concentration theorem", } \ No newline at end of file diff --git a/favicon.ico b/favicon.ico new file mode 100644 index 0000000000000000000000000000000000000000..1552bc4b92e90a6e4a1ae5d373cfed9c44bf482b GIT binary patch literal 10462 zcmeHM$uA{c6fcQjV_KLtNSgE~q$B+YuwWsGVPRn<_=1=T5d?`?2w`QxmKb74EQMGg zp?8LbF+q$85({Dsr{AwSRk`e-S+l2<>lq6aavkh)Y!n_tUNqCP-SH$`TF`2UeD~Yw6x@`Td5s< zv#~G+hU)5SdVGA8+OrBTFE5mol=Q)$=HJ~sw7AL1$@KdA%0d;6dwO~}4&L70>RR{p z_0iDK5M5kc2<`vNBzz-Ae}BIk6R|ZOI0J)OiHwZYZLy{+D=TJAKV1*8eSCa$Jkin7 zreYi(9_lvWUr|wE%FdNaWo2a?rlX@HX}J0MdCq2HVnS-;YK5_}F%Hw>;-WO<)YKGb ztU0}Bl7Gcr9rtxXx8u~)D*c%M5f&CSge92~437&|M#z+wVMnS3UX+S*z@KE}?9 zyLg0$LQ#&elOsjgb$HaRaJ5NIXO9`t&1Zbn1c>`zr%+}?0JlgjEL0Lxxv9fF2>Hz zj?l&tE{%&l50S1Y2r#g`dwY9D>gpV7L)PZ>^i*o&2w!$~HkFr`>%K6?HP*MrR~F#p zFOghdUsFg(h;D;-=G)tw$V8uW#D%RV*fF@6<$wUd5EvM!;|dK8rJI`@JvIh- zF0s$g%*;@He7vrUSoQVwoUZI2aIw!hn}2N#9q9g!)YQ~)*nkz7QAeSk*L>TbQ&Usv z{{G%DR7Xb#H8nMTIO^)^$j{Hu&@bkoHYoP z$fbHcC@9F3Pu9O|44)zaCSU_b)V)Uj5)%^%Ioa6Q5V`Xh4+LIcU#Ir=b^=x-9@=#; zFE1)8DiZcy?!K?k2No6<8e%^yqy7ZW#^wKh%lC!^2V@zuQNl{)&l-QP(g%J>7KOuGPHQ z2k=~q#J=8jRX_MQ^iiTb+SlzOUD2Go*24&cC%4rdFzxN_Ng<&IK)