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CritPt / Challenge_64_main / We consider the two-dimensional Ising conformal field theory.

Problem

Answer published by the source. Consult the official source to check your work against its answer.

problem description

# Problem setup: We consider the two-dimensional Ising conformal field theory. # Main problem: Compute the 5-point correlation function ⟨ϵ(x1)ϵ(x2)ϵ(x3)σ(x4)σ(x5)⟩\langle\epsilon(x_1)\epsilon(x_2)\epsilon(x_3)\sigma(x_4)\sigma(x_5)\rangle at (1) x1=1+ix_1=1+i, x2=2x_2=2, x3=3x_3=3, x4=4x_4=4, x5=5x_5=5. (2) x1=1x_1=1, x2=2x_2=2, x3=3x_3=3, x4=4x_4=4, x5=5x_5=5.
Plain-text mathematical notation (without MathML)
# Problem setup:
We consider the two-dimensional Ising conformal field theory.

# Main problem:

Compute the 5-point correlation function ⟨ϵ(x₁)ϵ(x₂)ϵ(x₃)σ(x₄)σ(x₅)⟩ at

(1) x₁=1+i, x₂=2, x₃=3, x₄=4, x₅=5.

(2) x₁=1, x₂=2, x₃=3, x₄=4, x₅=5.
Original LaTeX notation
# Problem setup:
We consider the two-dimensional Ising conformal field theory.

# Main problem:

Compute the 5-point correlation function $\langle\epsilon(x_1)\epsilon(x_2)\epsilon(x_3)\sigma(x_4)\sigma(x_5)\rangle$ at

(1) $x_1=1+i$, $x_2=2$, $x_3=3$, $x_4=4$, $x_5=5$.

(2) $x_1=1$, $x_2=2$, $x_3=3$, $x_4=4$, $x_5=5$.

code template

Code

def answer():
    r"""
    Return the values of the 5-point correlation function

    Inputs
    ----------
    None

    Outputs
    ----------
    corr_1, corr_2: float, the 5-point correlation function, $\langle\epsilon(x_1)\epsilon(x_2)\epsilon(x_3)\sigma(x_4)\sigma(x_5)\rangle$ at
        (1) $x_1=1+i$, $x_2=2$, $x_3=3$, $x_4=4$, $x_5=5$
        (2) $x_1=1$, $x_2=2$, $x_3=3$, $x_4=4$, $x_5=5$
    """

    # ------------------ FILL IN YOUR RESULTS BELOW ------------------
    corr_1 = ...
    corr_2 = ...
    # ---------------------------------------------------------------

    return corr_1, corr_2

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Source and history

Official source

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