900 citations
- GSI Helmholtz Centre for Heavy Ion ResearchDE248 papers
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8 papers · 2 filters
Atomtronics-enabled Quantum Technologies
Luigi Amico, Gerhard Birkl, Malcolm Boshier +1
Atomtronics is an emerging field in quantum technology that promises to realize 'atomic circuit' architectures exploiting ultra-cold atoms manipulated in versatile micro-optical ci…
Quantum spin transistor with a Heisenberg spin chain
O. V. Marchukov, A. G. Volosniev, M. Valiente +2
We propose and analyze a scheme for conditional state transfer in a Heisenberg spin chain which realizes a quantum spin transistor. In our scheme, the absence or presence of…
Will a decaying atom feel a friction force?
Matthias Sonnleitner, Nils Trautmann, Stephen M. Barnett
We show how a simple calculation leads to the surprising result that an excited two-level atom moving through vacuum sees a tiny friction force of first order in v/c. At first sigh…
Measurement-induced chaos and quantum state discrimination in an iterated Tavis-Cummings scheme
Juan Mauricio Torres, József Zsolt Bernád, Gernot Alber +2
A cavity quantum electrodynamical scenario is proposed for implementing a Schrödinger microscope capable of amplifying differences between non orthogonal atomic quantum states. The…
Arbitrarily Accurate Pulse Sequences for Robust Dynamical Decoupling
Genko T. Genov, Daniel Schraft, Nikolay V. Vitanov +1
We introduce universally robust sequences for dynamical decoupling, which simultaneously compensate pulse imperfections and the detrimental effect of a dephasing environment to an…
Conditions for entanglement purification with general two-qubit states
Juan Mauricio Torres, József Zsolt Bernád
We present the convergence study of a recurrence entanglement purification protocol using arbitrary two-qubit initial states. The protocol is based on a rank two projector in the B…