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A quantum phase transition detected through one dimensional ballistic conductance
Abolfazl Bayat, Sanjeev Kumar, Michael Pepper +1
A quantum phase transition is an unequivocal signature of strongly correlated many-body physics. Signatures of such phenomena are yet to be observed in ballistic transport through…
Entanglement entropy scaling in solid-state spin arrays via capacitance measurements
Leonardo Banchi, Abolfazl Bayat, Sougato Bose
Solid-state spin arrays are being engineered in varied systems, including gated coupled quantum dots and interacting dopants in semiconductor structures. Beyond quantum computation…
Supervised quantum gate "teaching" for quantum hardware design
Leonardo Banchi, Nicola Pancotti, Sougato Bose
We show how to train a quantum network of pairwise interacting qubits such that its evolution implements a target quantum algorithm into a given network subset. Our strategy is ins…
NOON States via Quantum Walk of Bound Particles
Enrico Compagno, Leonardo Banchi, Christian Gross +1
Tight-binding lattice models allow the creation of bound composite objects which, in the strong-interacting regime, are protected against dissociation. We show that a local impurit…
Gating classical information flow through spin chains by quantum phase transitions
Leonardo Banchi, Joaquin Fernandez-Rossier, Cyrus F. Hirjibehedin +1
To push commercial electronics beyond its current size limits, atomic-scale communication channels and logic units need to be designed, making the use of quantum entities an impera…
Unravelling Quantum Dot Array Simulators via Singlet-Triplet Measurements
Johnnie Gray, Abolfazl Bayat, Reuben K. Puddy +2
Recently, singlet-triplet measurements in double dots have emerged as a powerful tool in quantum information processing. In parallel, quantum dot arrays are being envisaged as anal…