We investigate the fundamental dimensional limits to thermodynamic machines. In particular, we show that it is possible to construct self-contained refrigerators (i.e., not requiring external sources of work) consisting of only a small number of qubits and/or qutrits. We present three different models, consisting of two qubits, a qubit and a qutrit with nearest-neighbor interactions, and a sing...

Measurement Device Independent Quantum Private Query (MDI QPQ) with qutrits is presented. We identified that this variant of QPQ protocol resists the optimization of both database security and client’s privacy simultaneously. We compare the database security and client’s privacy in MDI QPQ for qubits with qutrits. For some instances, we observe that qutrit will provide better security for datab...

quantum circuits are promising choices for future quantum computing technology, since the multiple-valued quantum system is more compact than the corresponding binary quantum system. Grover's quantum search algorithm requires a sub-circuit called oracle, which takes a set of inputs and gives an output stating whether a given search condition on the inputs is satisfied or not. Equality, less-tha...

Unextendible product bases (UPBs) play an important role in quantum information theory. However, very little is known about UPBs in Hilbert space of local dimension more than three. In this paper, we study the UPBs in qutrit-ququad system and find that there only exist six, seven and eight-state UPBs. We completely characterize the six-state and seven-state UPBs. For eight-state UPBs, seven cla...

The bidirectional steerability between different-size subsystems is discussed for a single parameter accelerated qubit–qutrit system. decoherence due to the mixing and acceleration parameters investigated, where total system qutrit, it increases as increases, while decreases qubit. non-classical correlations are quantified by using local quantum uncertainty, uncertainty at large values of param...

Three-dimensional entanglement of orbital angular momentum states of an atomic qutrit and a single photon qutrit has been observed. Their full state was reconstructed using quantum state tomography. The fidelity to the maximally entangled state of Schmidt rank 3 exceeds the threshold 2/3. This result confirms that the density matrix cannot be decomposed into an ensemble of pure states of Schmid...

Ternary quantum processors offer significant computational advantages over conventional qubit technologies, leveraging the encoding and processing of information in qutrits (three-level systems). To evaluate compare performance such emerging hardware it is essential to have robust benchmarking methods suitable for a higher-dimensional Hilbert space. We demonstrate extensions industry standard R...

We proposed and analyzed implementation of the single-qutrit quantum gates based on stimulated Raman adiabatic passage (STIRAP) between magnetic sublevels in atoms coupled by pulsed laser fields. This technique requires only the control of the relative phase of the driving fields but do not involve any dynamical or geometrical phases, which make it independent of the other interaction details: ...