You can use atoms as many different types of qubits.

manipulating physical qubits

To make physical qubits go to different states, we will again use something in the ancillary states. Rotating it to \(z\) — leverage one lazer to make it fall; \(rx\), \(ry\), we leverage combinations of two light.

various qubit implementations

Implementations of physical qubits

possible uses for qubits

Here are some possible uses for physical qubits

AFIB is a heart conditinos, which is augmented during heart surgery.

“Endogeneous extrolluculor proteases damage to Kv1.5 in the atria contributes to AFIB”

• WBC’s secretion of proteases, such as calpain when it is inflamed

autism is a spectrum disorder that are caused by both environmental and genetic factors.

Key Question: how can different chromatin regulators lead to the same set of symptoms named “autism”.

autism gene signature

The gene signature of autism can be measured in clean and quantitative assays.

Forward Accumulation

First, make a computation graph.

Consider \(\ln (ab + \max (a,2))\)

Say we want \(\pdv{f}{a}(3,2)\).

Let’s begin by tracking, left to right, both the value of each node and its derivative.

Layer 1:

• \(b = 2, \pdv{b}{a} = 0\)
• \(a = 3, \pdv{a}{a} = 1\)

Layer 2:

• \(c_1 = a\times b = 6, \pdv{c_1}{a} = b\pdv{a}{a} + a \pdv{a}{b} = 2\)

and so on; until we get to \(c_4\)