Using quantum state protection via dissipation in a quantum-dot molecule to solve the Deutsch problem

2012/03/19 by M. M. Santos, F. O. Prado, H. S. Borges +4
Computer Science · Mathematics · Physics and Astronomy · #Algorithm #Computation #Dissipation #Ground state #Mathematics #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum computer #Quantum dot #Quantum mechanics #Quantum superposition #Quantum tunnelling #Semiconductor Quantum Structures and Devices #State (computer science) #Superposition principle #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physreva.85.032323

published as Phys. Rev. A 85, 032323 (2012) · 8 pages, 1 figure, 2 tables

openalex publication_date 2012/03/19 · arxiv created 2012/03/20 · arxiv updated 2012/03/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The wide set of control parameters and reduced size scale make semiconductor quantum dots attractive candidates to implement solid-state quantum computation. Considering an asymmetric double quantum dot coupled by tunneling, we combine the action of a laser field and the spontaneous emission of the excitonic state to protect an arbitrary superposition state of the indirect exciton and ground state. As a by-product we show how to use the protected state to solve the Deutsch problem.

Citations

• Control of Exciton Dynamics in Nanodots for Quantum Operations
• Implementation of a quantum algorithm on a nuclear magnetic resonance quantum computer
• Experimental realization of a quantum algorithm
• Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
• Deutsch-Jozsa algorithm as a test of quantum computation
• Phonon effects on the radiative recombination of excitons in double quantum dots
• Pointer basis of quantum apparatus: Into what mixture does the wave packet collapse?
• Demonstration of two-qubit algorithms with a superconducting quantum processor
• Steady-state quantum interference in resonance fluorescence
• Room-Temperature Implementation of the Deutsch-Jozsa Algorithm with a Single Electronic Spin in Diamond
• Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot
• Die gegenw�rtige Situation in der Quantenmechanik
• Quantum theory, the Church–Turing principle and the universal quantum computer
• Quantum entanglement