News

New graduate student: Nathan Myers

Starting Fall 2018 Nathan Myers has joined the group as graduate student. His research will focus on the efficiency of quantum heat engines and their relevance for the frontiers of quantum...

Posted: September 20, 2018, 11:54 AM

New Paper: Physical Review A

Quantum Zeno effect in correlated qubits Dominik Šafránek and Sebastian Deffner Phys. Rev. A 98, 032308 (2018) Near-term quantum hardware promises to achieve quantum supremacy. From a...

Posted: September 10, 2018, 3:32 PM

New Paper: Physical Review X

Jarzynski Equality for Driven Quantum Field Theories Phys. Rev. X 8, 011033 Anthony Bartolotta and Sebastian Deffner Since the middle of the last century, quantum field theory—a theoretical...

Posted: February 27, 2018, 4:05 PM

New Paper: Quantum Science and Technology

Precision thermometry and the quantum speed limit

Precision thermometry and the quantum speed limit Steve Campbell, Marco G. Genoni, and Sebastian Deffner Quantum Sci. Technol. 3, 025002 (2018) We assess precision thermometry for an...

Posted: February 5, 2018, 9:27 AM

The Academic Minute with Dr. Deffner

Dr. Deffner featured on WAMC

A new, more secure computer is on the way to protect our most sensitive data. Sebastian Deffner, assistant professor of physics at the University of Maryland Baltimore County, explores quantum...

Posted: December 11, 2017, 11:11 AM

New Paper: Phys. Rev. E

Kibble-Zurek scaling of the irreversible entropy production

Kibble-Zurek scaling of the irreversible entropy production Sebastian Deffner Phys. Rev. E 96 (2017) 052125 If a system is driven at finite rate through a phase transition by varying an...

Posted: November 17, 2017, 7:46 AM

New Paper: Heliyon

Demonstration of entanglement assisted invariance on IBM's quantum experience Sebastian Deffner Heliyon, 3 e00444 (2017)

Posted: November 3, 2017, 1:55 PM

New Paper: New Journal of Physics

Quantum speed limits in phase space

Geometric quantum speed limits: a case for Wigner phase space Sebastian Deffner New J. Phys. 19, 103018 (2017) The quantum speed limit is a fundamental upper bound on the speed of quantum...

Posted: October 23, 2017, 8:07 AM

New Paper: Topical Review in J. Phys. A

Quantum speed limits

Quantum speed limits: from Heisenberg's uncertainty principle to optimal quantum control Sebastian Deffner and Steve Campbell J. Phys. A: Math. Theor. 50, 453001 (2017) One of the most...

Posted: October 12, 2017, 12:50 PM