All of my publications can also be found on my google scholar page.
Many-body spin rotation by adiabatic passage in spin-1/2 XXZ chains of ultracold atoms
I. Dimitrova, S. Flannigan, Y. K. Lee, H. Lin, J. Amato-Grill, N. Jepsen, I. Čepaitė, A. J. Daley, W. Ketterle
We explore an adiabatic protocol in a system of ultracold atoms in an optical lattice. A fully magnetized state is connected to a correlated zero-magnetization state (an xy-ferromagnet) by a many-body spin rotation, realized by sweeping the detuning and power of a microwave field. Our experimental and theoretical studies highlight the potential and challenges for adiabatic preparation protocols to prepare many-body eigenstates of spin Hamiltonians.
arxiv, arXiv:2301.00218, 2022
Counterdiabatic Optimised Local Driving [Blog post]
I. Čepaitė, A. J. Daley, A. Polkovnikov, C. W. Duncan
We outline a new method for speeding up adiabatic protocols which combines ideas from local counterdiabatic driving and optimal control methods, taking advantage of the strengths of each. We refer to it as Counterdiabatic Optimised Local Driving (COLD).
PRX Quantum 4, 010312, 2023
arxiv, arXiv:2203.01948, 2022
A Continuous Variable Born Machine
I. Čepaitė, B. Coyle, E. Kashefi
Generative Modelling has become a promising use case for near term quantum computers. In particular, due to the fundamentally probabilistic nature of quantum mechanics, quantum computers naturally model and learn probability distributions. The Born machine is an example of such a model. Here we present the Born machine within the framework of Continuous Variable Quantum Computing for the purpose of learning continuous probability distributions.
Quantum Mach. Intell. 4, 6, 2022
arxiv, arXiv:2011.00904, 2020
Singlet Pathway to the Ground State of Ultracold Polar Molecules
A. Yang, S. Botsi, S. Kumar, S. B. Pal, M. M. Lam, I. Čepaitė, A. Laugharn, and K. Dieckmann
We demonstrate a two-photon pathway to the ground state of 6Li40K molecules that involves only singlet-to-singlet optical transitions.
Phys. Rev. Lett. 124, 133203, 2020
arxiv, arXiv:1908.02703, 2019
Simulation of Networked Quantum Computing on Encrypted Data
I. Čepaitė
I adapt and simulate a Quantum Fully Homomorphic Encryption protocol based on the Measurement-Based Quantum Computing model on the recently released IBM 16-qubit cloud quantum processor.
arxiv, arXiv:2212.12953
Edinburgh University BSc Thesis, 2017
Ieva Čepaitė 