A Path Integral Approach for Time-Dependent Hamiltonians with Applications to Derivatives Pricing
- URL: http://arxiv.org/abs/2408.02064v1
- Date: Sun, 4 Aug 2024 15:28:58 GMT
- Title: A Path Integral Approach for Time-Dependent Hamiltonians with Applications to Derivatives Pricing
- Authors: Mark Stedman, Luca Capriotti,
- Abstract summary: We generalize a path integral approach originally introduced by Giachetti and Tognetti to time-dependent Hamiltonians.
We show results for the well-known, but analytically intractable, Black-Karasinski model for the dynamics of interest rates.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We generalize a semi-classical path integral approach originally introduced by Giachetti and Tognetti [Phys. Rev. Lett. 55, 912 (1985)] and Feynman and Kleinert [Phys. Rev. A 34, 5080 (1986)] to time-dependent Hamiltonians, thus extending the scope of the method to the pricing of financial derivatives. We illustrate the accuracy of the approach by presenting results for the well-known, but analytically intractable, Black-Karasinski model for the dynamics of interest rates. The accuracy and computational efficiency of this path integral approach makes it a viable alternative to fully-numerical schemes for a variety of applications in derivatives pricing.
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