Staff

Nitrogen-vacancy (NV) centers in diamond nanophotonic structures for quantum networking

Edward Chen, Massachusetts Institute of Technology

The exceptional optical and spin properties of the negatively charged nitrogen-vacancy (NV) center in diamond have led to a wide range of hallmark demonstrations ranging from super-resolution imaging to quantum entanglement, teleportation, and sensing. The solid-state environment of the NV allows us to engineer nano-structures that can enhance the properties of the NV and improve the readout and initialization fidelities of the spin.

Quantum Max-flow/Min-cut

Xingshan Cui, University of California, Santa Barbara

The classical max-flow min-cut theorem describes transport through certain idealized classical networks. We consider the quantum analog for tensor networks. By associating a tensor to each node in an integral flow network, we can also interpret it as a tensor network, and more specifically, as a linear map.

Sean Walker of the Department of Chemistry will be defending his thesis:

Molecular nanomagnets for novel spintronics devices

Sean is supervised by Professor Jonathan Baugh.

Poompong Chaiwongkhot of the Department of Physics and Astronomy will be defending his thesis:

Detection Efficiency Mismatch and Finite-Key-Size Attacks on Practical Quantum Cryptography Systems

Poompong is supervised by Research Assistant Professor Vadim Makarov.

How hard is deciding trivial versus non-trivial in the dihedral coset problem

Nai-Hui Chia, Pennsylvania State University

The dihedral coset problem (DCP) is an important open problem in quantum algorithms and has been studied since the early days of quantum computing. This problem attracts attention even from experts in cryptography due to its application to the lattice-based cryptosystems. It has been shown by Oded Regev in 2005 that the DCP has deep connections to the unique shortest vector problem and the random subset sum problem.

Celebrating light and light-based technologies

Anirudh of the Department of Physics and Astronomy will be defending his thesis:

Experimentally Testable Noncontextuality Inequalities via Fourier-Motzkin Elimination.

Jihyun is supervised by Professors Joseph Emerson and Robert Spekkens.