Takis Angelides

PhD Student at DESY Zeuthen and Humboldt University of Berlin, interested in classical computing with tensor networks and quantum computing.

[Takis Angelides @Takis_Angelides]

Our new paper is on arxiv today demonstrating a phase transition in 1+1 QED with a digital quantum computer! https://t.co/73QXBjfOEy

[Takis Angelides @Takis_Angelides]

Finding the inverse of a quantum operator expressed as an MPO with @ITensorLib :

https://t.co/IU4C3pJR2u

[Takis Angelides @Takis_Angelides]

Implemented from scratch the DMRG algorithm with @ITensorLib, which can be a helpful example on the basics of ITensors and to understand the details of DMRG's implementation.

Code:

https://t.co/YCEIpe2zKe

[Takis Angelides @Takis_Angelides]

I have coded for educational puproses an example of the plain tensor renormalization group algorithm for the 2D classical Ising model in Julia based on the nice description of the algorithm found here https://t.co/JeQoj05Ia7.

Code: https://t.co/DfiGJFOlEZ

[Takis Angelides @Takis_Angelides]

This is completing the work from the proceeding https://t.co/POisTlpw6a stemming from the 2022 Lattice conference in Bonn. New results include the periodicity of the mass shift in θ, continuum extrapolation of Schwinger boson mass and more.

[Takis Angelides @Takis_Angelides]

New paper today https://t.co/v9eNohR5Vf wrapping up the work on the mass shift of Wilson fermions in the Hamiltonian formulation. Matrix product states and @ITensorLib DMRG give impressive simulation performance.

[Takis Angelides @Takis_Angelides]

In case you find this useful, I wrote a quick python function to evaluate quantum circuits symbolically. Input your initial state and the gates to apply (which can be parameterised by symbols) to get the final statevector.

https://t.co/3bbvok7uBU

[Takis Angelides @Takis_Angelides]

Some of the work done in my first PhD project is shown in https://t.co/POisTlpw6a. The paper is about measuring the mass shift attributed to the use of Wilson fermions as applied to the Schwinger model with a topological theta term in the Hamiltonian formulation using @ITensorLib

[Takis Angelides @Takis_Angelides]

Where it all started.