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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Synthesis of robust memory modes for linear quantum systems with unknown inputs
未知输入 线性量子系统 鲁棒记忆模式
2023/11/7
In this work, synthesis of robust memory modes for linear quantum passive systems in the presence of unknown inputs has been studied, aimed at facilitating secure storage and communication of quantum ...
Quantum communications boosted by solid memory devices（图）
Quantum communications solid memory devices
2011/1/21
Two independent groups have demonstrated how a pair of entangled photons can transfer their entanglement to and from a solid – the process that should one day form the backbone of so-called quantum me...
High efficiency coherent optical memory with warm rubidium vapour
High efficiency coherent optical memory warm rubidium vapour
2010/10/18
By harnessing aspects of quantum mechanics, communication and information processing
could be radically transformed. Promising forms of quantum information technology include
optical quantum cryptog...
Gaussification of quantum states of traveling light beams in atomic memory
Gaussification quantum states atomic memory
2010/10/21
We propose and investigate a protocol for Gaussification of quantum states of traveling light
beams in an atomic quantum memory that couples to light via quantum non-demolition interaction.
The prot...
Multi mode nano scale Raman echo quantum memory
surface plasmon polariton echo quantum memory
2010/3/10
Low loss magnetic surface plasmon polariton (SPP) modes characterized by enhanced electrical field component and subwavelength confinement on the dielectric and negative-index metamaterial interface ...
Tempting long-memory-on the interpretation of DFA results
long-memory-on interpretation DFA results
2009/11/11
We study the inference of long-range correlations by means of Detrended Fluctuation Analysis (DFA) and argue that power-law scaling of the fluctuation function and thus long-memory may not be assumed ...
Quantum memory as a perpetuum mobile of the second kind
Quantum memory perpetuum mobile the second kind
2010/4/7
It is argued that a scalable quantum memory could be used as a perpetuum mobile of the second kind and hence cannot be realized in Nature. The reasoning is based on the assumption that the Landauer's ...
Entanglement enhanced bit rate over multiple uses of a lossy bosonic channel with memory
Entanglement enhanced bit rate multiple uses of a lossy bosonic channel memory
2010/4/12
We present a study of the achievable rates for classical information transmission via a lossy bosonic channel with memory, using homodyne detection. A comparison with the memoryless case shows that th...
New Phase Transitions in Optimal States for Memory Channels
New Phase Transitions Optimal States Memory Channels
2010/4/8
We investigate the question of optimal input ensembles for memory channels and construct a rather large class of Pauli channels with correlated noise which can be studied analytically with regard to t...
The Algebraic Measure of a Hidden Markov Quantum Memory Channel
Algebraic a Hidden Markov Quantum Memory Channel
2010/4/8
This paper was presented in poster form at and in the proceedings of the QCMC 2008. It is a summary of a fuller paper to appear separately. The classical product state capacity of a noisy quantum chan...
Classical capacity of a qubit depolarizing channel with memory
Classical capacity qubit depolarizing channel memory
2010/4/8
The classical product state capacity of a noisy quantum channel with memory is investigated. A forgetful noise-memory channel is constructed by Markov switching between two depolarizing channels which...
Dynamical Suppression of Decoherence in Two-Qubit Quantum Memory
decoherence suppression quantum memory bang-bang technique Ising model
2007/8/15
2005Vol.44No.3pp.459-462DOI:
Dynamical Suppression of Decoherence in Two-Qubit Quantum Memory
LIU Xiao-Shu1,2 and LIU Yang1,2
1 Department of Physics, Tsinghua Universit...