106 citations · 184 across the 7 of their papers we have counts for
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Quantitative complementarity between local and nonlocal character of quantum states in a three-qubit system
Xinhua Peng, Jingfu Zhang, Jiangfeng Du +1
Local or nonlocal character of quantum states can be quantified and is subject to various bounds that can be formulated as complementarity relations. Here, we investigate the local…
Measuring complete quantum states with a single observable
Xinhua Peng, Jiangfeng Du, Dieter Suter
Experimental determination of an unknown quantum state usually requires several incompatible measurements. However, it is also possible to determine the full quantum state from a s…
Is the quantum adiabatic theorem consistent?
Jiangfeng Du, Lingzhi Hu, Ya Wang +3
The quantum adiabatic theorem states that if a quantum system starts in an eigenstate of the Hamiltonian, and this Hamiltonian varies sufficiently slowly, the system stays in this…
Experimental Demonstration of the Unified Framework for the Mixed State Geometric Phase
Jiangfeng Du, Mingjun Shi, Jing Zhu +3
Geometrical phases have been applied in virtually every major branch of physics and they play an important role in topology and knot theory in mathematics and quantum computation.…
Detection of quantum critical points by a probe qubit
Jingfu Zhang, Xinhua Peng, Nageswaran Rajendran +1
Quantum phase transitions occur when the ground state of a quantum system undergoes a qualitative change when an external control parameter reaches a critical value. Here, we demon…
Iterative quantum state transfer along a chain of nuclear spin qubits
Jingfu Zhang, Nageswaran Rajendran, Xinhua Peng +1
Transferring quantum information between two qubits is a basic requirement for many applications in quantum communication and quantum information processing. In the iterative quant…