Grover

Struct Grover 

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pub struct Grover { /* private fields */ }
Expand description

Grover’s search algorithm for unstructured search.

Provides quadratic speedup: O(√N) vs O(N) classical.

§Example

use logosq_algorithms::{Grover, Oracle};

let oracle = Oracle::from_marked_states(&[5], 3);
let grover = Grover::new(oracle).unwrap();
let result = grover.run(1000).unwrap();

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impl Grover

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pub fn new(oracle: Oracle) -> Result<Self, AlgorithmError>

Create a new Grover search instance.

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pub fn with_iterations(self, iterations: usize) -> Self

Set a specific number of iterations (overrides optimal calculation).

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pub fn optimal_iterations(&self) -> usize

Calculate the optimal number of iterations.

Optimal iterations ≈ π/4 × √(N/M)

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pub fn build_circuit(&self) -> Result<Circuit, AlgorithmError>

Build the Grover circuit.

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pub fn run(&self, shots: u32) -> Result<GroverResult, AlgorithmError>

Run Grover’s algorithm.

Auto Trait Implementations§

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impl Freeze for Grover

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impl RefUnwindSafe for Grover

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impl Send for Grover

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impl Sync for Grover

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impl Unpin for Grover

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impl UnwindSafe for Grover

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.