D. Loss

Publications633
h-index75
Citations30,947
Highly Influential Citations486
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Quantum computation with quantum dots
We propose an implementation of a universal set of one- and two-quantum-bit gates for quantum computation using the spin states of coupled single-electron quantum dots. Desired operations are…
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Schrieffer-Wolff transformation for quantum many-body systems
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Semiconductor spintronics and quantum computation
1 Ferromagnetic III-V Semiconductors and Their Heterostructures.- 2 Spin Injection and Transport in Micro- and Nanoscale Devices.- 3 Electrical Spin Injection: Spin-Polarized Transport from Magnetic…
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Quantum information processing using quantum dot spins and cavity QED
The electronic spin degrees of freedom in semiconductors typically have decoherence times that are several orders of magnitude longer than other relevant time scales. A solid-state quantum computer…
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Coupled quantum dots as quantum gates
We consider a quantum-gate mechanism based on electron spins in coupled semiconductor quantum dots. Such gates provide a general source of spin entanglement and can be used for quantum computers. We…
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Strong spin-orbit interaction and helical hole states in Ge/Si nanowires
Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA(Dated: July 25, 2011)Westudytheoreticallythelow-energyholestatesofGe /Sicore /shellnanowires.…
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Electron spin decoherence in quantum dots due to interaction with nuclei.
TLDR
There is a striking difference between the decoherence time for a single dot and the dephasing time for an ensemble of dots and it is shown that the precession amplitude and the decay behavior can be tuned by the magnetic field.
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Electron spin dynamics in quantum dots and related nanostructures due to hyperfine interaction with nuclei
We review and summarize recent theoretical and experimental work on electron spin dynamics in quantum dots and related nanostructures due to hyperfine interaction with surrounding nuclear spins. This…
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Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics
We have performed a systematic calculation for the non-Markovian dynamics of a localized electron spin interacting with an environment of nuclear spins via the Fermi contact hyperfine interaction.…
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Quantum simulation of many-body Hamiltonians using perturbation theory with bounded-strength interactions.
TLDR
This work shows how to map a given n-qubit target Hamiltonian with bounded-strength k-body interactions onto a simulator Hamiltonian, such that the ground-state energy of the target and the simulator Hamiltonians are the same up to an extensive error O(epsilon n) for arbitrary small epsilon.
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